——ale io, UTE Ll PF ad "A SERVICE MANUAL Model No.8260 - PN82593 -Contents Foreword ---- Maintenance -- Fuel System Body/Suspension - Final Drive - Transmission - Brakes - Engine « ElectrealForeword This manual is designed primarily for use by the ATV factory certified service technicians in a property e- quipped shop. Persons using this manual should have a sound knowledge of mechanical theory, tool use, and shop procedures in order to perform the work safely and correctly. The technician should read the text and be familiar with service procedures before starting the work. Certain procedures require the use of special tools. Use only the proper tools, as specified. Cleanliness of parts and tools as well as the work area is of primary importance. All references to left and right side of the vehicle are from the operator's perspective when seated in a normal riding position. This manual includes procedures for maintenance operations, component identification and unit repair,along with service specifications for these ATVs. Keep this manual available for reference in the shop area. At the time of publication all information contained in this manual was technically correct. However, all ‘materials and specifications are subject to change without notice.MAINTENANCE CAUTION - q Due to the nature of the adjustments marked with al0) on the following chart, it is recommended that service be performed by an authorized dealer. ‘A More often under severe use, such as dirty or wet conditions to purge water or dirt contamination from grease fittings and other critical components. Periodic Maintenance Schedule Careful periodic maintenance will help keep your vehicle in the safest, most reliable condition. Inspection, adjustiment and lubrication intervals of important components are explained in the following chart on the following pages. Maintenance intervals are based upon average riding conditions and an average vehicle speed of approxi mately 10 miles per hour. Vehicles subjected to severe use, such as operation in wet or dusty areas, should be inspected and serviced more frequently. Inspect, clean, lubricate, adjust or replace parts as necessary. NOTE: Inspection may reveal the need for replacement parts. Always use genuine parts available from your dealer. Service and adjustments are critical. If you are not familiar with safe service and adjustment procedures, have a qualified dealer perform these operations. lem Hours | When Remarks Brake System Pre-ride _|Pre-ride _| Pre-ride inspection item Auxiliary Brake Pre-ride |Pre-ride | Pre-ride inspection item Tires - Pre-ride |Pre-ride | Inspect daily, pre-ride inspection item Wheels Pre-ride |[Pre-ride | Pre-ride inspection item _| Frame nuts, bolts Pre-tide |Pre-tide | Pre-ride inspection item fasteners, a | Air Fitter-pre— Daily Daily Inspect-Clean Cleaner Coolant/Level Daily Daily Replace engine coolant annually Inspection | Air Box Sediment Tube [Daily Daily Drain deposits whenever visible Headlamp Inspection [Daily Daily Check operation dai apply dielectric grease to connector when replaced Tall lamp inspection {Daily Daily Check operation daily; apply dielectric grease to socket when replaced X | Air Fiter-Main Element [Weekly |Weekly | Inspect-Replace if necessary ‘a | Transmission Oil Level |20 hrs —_|Monthly _| Inspect monthly; change annually Battery 20 hrs |Monthly | Check/clean Terminals; check fluid level 1 iMAINTENANCE lem Hours | When | Remove | Brake pad wear 10 hrs [Monthly | Inspect periodically Rear 100 hrs | Monthly | Check monthly and change annually Gearcase Oil Engine Cylinder 25 hs | 3 Inspect (re-torque required at first service only) Head and months Cylinder Base Fasterners ‘| General Lubrica- sons | 3 Lubricate all fittings, pivots, cables, ete. tion months Item Hours | When | Remarks 4 | Engine Oil-Level/ 30 hrs | 3 Check Level Daily; Break in Service at 1 month. Change months | Change oil more often in cold weather use. | Oil Fitter 50 hrs [6 Inspect-clean months Engine breather 100 hrs | 6 Inspect hose months Carburetor Float 50 hrs | 6 Drain bow! periodically and prior to storage Bowl months | Throttle Cable 50 hrs | 6 Inspect-adjust, lubricate, replace if necessary; pre-ride inspection item | Coolant strength 100 hs | 6 Inspect strength seasonally months Shift linkage 50 hrs | 6 Inspect, adjust months Drive belt 6 D| Drive bett | [Bons | BSCR replace If necessary - | Steering so hs [6 Inspect daily, lubricate Months 4 | Rear Axie 50 hrs [6 Inspect bearings, Lube MonthsMAINTENANCE ttem Hours | When —_| Remove ‘A | Front Suspension sons | 6 | Inspect-tubricate, tighten fasteners, months 4 | Rear Suspension 50 hrs | 6 Inspect, tighten fasteners months Spark Plug 100 hrs | 12 Inspect-replace it necessary months Ignition Timing 100 hrs | 12 Inspect and adjust as needed months D | Fuel System 100 12 Check for leaks at tank cap, lines, fuel valve, hours | months | filter, and carburetor. Replace lines every one year. D | Fuel Fitter 100 hrs | 12 Replace annually months Radiator 100 hrs | 12 Inspect/clean external surface months Cooling System so hrs [6 Inspect/replace if necessary hoses months Spark arrestor 10 hrs Clean out-replace if necessary monthly _| Clutches (drive 25 hrs [3 Inspect, clean and driven) months Engine Mounts 25 hrs [3 Inspect months Valve Clearance 100 hrs | 12 Inspect/Adjust months Shift selector box 200 hrs | 24 Change grease every two years (H/L/RYN) months Brake fluid 200 hrs | 24 Change every two years months Idle Speed As Re- | As Re- | Adjust quired | quired 1D | Toe adjustment As re- | As re- | Periodic inspection, adjust when parts are replaced quired | quired Headlight Aim As re- | As re- | Adjust if necessary quired | quired2 MAINTENANCE Lubrication Recommendations tem | Lube Rec Method Frequency 1.Engine Oil SAE | Add to level on dipstick Check level dail : i a ; ec . a 15W/40 8G aa a nena Maintain level ; 2.Brake DoT 3 . AAs required; change every cal Only | between fil nes. See °7.CONTROL | Saud, cre ow 3. Transmis- | SAE | See " 16.MAINTENANCE/TRANSMIS- q a eres lcrcntiigees Chage annually or at 100 hours 4.Rear SAE | See " 16MAINTENANCE/Rear _ , 7 f Gearcase oil | s0W/20 GLS | Gearcase Lubrication" ania heaheeiaemraa 5. Front A Locate itn vot shaft and *Jarm pivot Grease | borate Ming on pivot shaft and | every g months or 60 hours grease with grease gun Shatt (6. Steering Locate fitting on steering rest and 5 Post Bushings | 25° | ase with grosse gun very 3 months or 60 hours ; i it a7. Front | Graage_| spect and replace bearings = Whee! bearings necessary 8. Tie rods Grease | Locate fitings and Grease Semi-annually 9. Shift Linkages| Grease | Locate fitings and Grease Semi-annually ‘4]10. Ball Joints | Inspect | Inspect and Replace it it necessary | Semi-annually 11. Prop Shaft Ala shah Vora | tease | Locate fiting and Grease Semi-annually 1 5 -tsimm) Act 8 “tstmm)MAINTENANCE Lubrication Recommendations 12. Ri | 12: Rear Axle | crease | Locate fiting and grease Every 3 months or 50 hours Bearing 48. Swing Arm , a ft with grease gun | Monthly or 20 — Grease | Locate fiting and grease with grease gt jonthly or 20 hours | 14 Throttle | Grease | cease, inspect and replace it if necessary | Monthly or 20 hours Cable @ NOTE: 1. More often under severe use, such as wet or dusty conditions, 2. Grease: Light weight lithium-soap grease. 3. Grease @: molybdenum disulfide (MoS,) grease (water resistant) 4.* When suspension action becomes stiff or after washing. 5. Hours are based on 10 mph (16 km/h) average.MAINTENANCE FUEL SYSTEM i ‘oline is extremely flammable and explosive under certain conditions. Always stop the engine and refuel outdoors or in a well ventilated area. Do not smoke or allow open flames or sparks in or near the area where refueling is performed or where gasoline is stored. Do not overfill the tank. Do not fill the tank neck. | you spill gasoline on your skin or clothing, immeditately wash it off with soap and water and change clothing Never start the engine or let it run in an enclosed area. Gasoline powered engine exhaust fumes are poisonous and can cause loss of consciousness and death in a short time. Never drain the float bow! when the engine is hot. Severe burns may result. Z\\, I you get gasoline in your eyes or if you swallow gasoline, see your doctor immediately. ‘U EL LINES 1. Check fuel lines for signs of wear,deterioration, dam- age or leakage. Replace if necessary. 2. Be sure fuel lines are routed properly and secured with cable ties. CAUTION: Make sure lines are not kinked or pinched. } Replace all fuel lines every two years. VENT LINES 1. Check fuel tank, oil tank, carburetor, battery and transmission vent lines for signs of wear, deteriora- tion, damage or leakage. Replace every two years 2, Be sure vent lines are routed prolperly and secured with cable ties. CAUTION: Make sure lines are not kinked or pinched FUEL FILTER The fuel filter should be replaced in accordance with the Periodic Maintenance Chart or whenever sediment is visi ble in the fiter. 1, Shut off fuel supply at fuel valve 2. Remove line clamps at both ends of the filter 3. Remove fuel lines from fiter. 4. Install new filter and clamps onto fuel lines with ar- row pointed in direction of fue! flow. Install clamps on fuel line. ® Tum fuel valve ON, Start engine and inspect for leaks. 8: Reinstall fuel tank. Arrow Indicates Direction of Flow “B=MAINTENANCE TOE ALIGNMENT-METHOD : STRAIGHTEDGE OR STRING Be sure to keep handlebars centered. See note below. NOTE: String should just touch side surface of rear tire on each side of machine. Measure from string to rim at front and rear of rim. Rear rim measurement (A) should be 1/16” to 1/8" (2 to 3 cm) more than front rim measure ment (6), FRONT NOTE: The steering post arm (frog) can be used as an indicator of whether the handlebars are straight. The frog should always point straight back from the steering post when handlebars are straightx BRAKING SYSTEM INSPECTION MAINTENANCE The following checks are recommended to keep the braking system in good operating condition. Service life of braking system components depends on operating conditions. Inspect brakes in accordance with the maintenance schedule and before each ride. + Keep fluid level in the master cylinder reservoir to the indicated level inside reservoir. + Use DOT 3 brake fluid NOTE: Use new brake fluid or brake fluid from a sealed container to avoid contamination to system. + Check brake system for fluid leaks. + Check brake for excessive travel or spongy feel. + Check friction pads for wear, damage and looseness. + Check surface contition of the disc. + Inspect thickness of brake pad friction material. BRAKE PAD INSPECTION Pads should be changed when friction material is worn to 3/64” (1mm). HOSE/FITTING INSPECTION Check braking system hoses and fittings for cracks, deterioration, abrasion, and leaks. Tighten any loose fittings and replace any worn or damaged parts. Sight Gees \ og Parking Brake \ 64 om PE) sicMAINTENANCE AUXILtARY-BRAKE ADJUSTMENT (HYDRAULIC) Use the following procedure to inspect the hydraulic auxiliary (foot) brake system and adjust or bleed if “necessary. 1. First check foot brake effectiveness by applying ‘@ 50 Ib. (approx) downward force on the pedal. The top of the pedal should be at least 1, (25.4mm) above the surface of the footrest. If less than one inch, two things must be exam- ined: Free Play: Free play of the brake pedal should be 1/8-1/4 inch (3.2-6.35mm). tree play is excessive, inspect pedal, linkage, and master cylinder for wear or damage and replace any worn parts. Bleeding: If free play is correct and brake pedal travel is stil excessive, air may be trapped somewhere in the system. Bleed the hydraulic auxiliary brake system in @ conventional manner, following the procedure outlined in the Brake chapter. AUXILIARY BRAKE TESTING The auxiliary brake should be checked for proper adjustment. Support the rear wheels off the ground. While turning the rear wheels by hand, apply the auxiliary footbrake. This brake should not stop the wheels from turning until the lever is half way be- tween its rest position and bottoming on the footrest. 10 V8" to 14" Free Play "se Foot Brake Pedal Full Height Engagement Full Engagement (V2 Heign — Engage Board SurfaceMAINTENANCE SUSPENSION SPRING PRELOAD AI Operator weight and vehicle loading affect suspen- sion spring preload requirements. Adjust as neces- sary. FRONT SUSPENSION Compress and release front suspension. Damping should be smooth throughout the range of travel. Check all front suspension components for wear or damage. Inspect front strut cartridges for leakage. REAR SUSPENSION Compress and release rear suspension. Damping should be smooth throughout the range of travel. Check all rear suspension components for wear or damage. Inspect shock for leakage. Shock spring preload can be adjusted using the shock spanner wrench. Operator weight and loading affect spring preload requirements. Adjust as necessary. CONTROLS Check controls for proper operation, positioning and adjustment. Brake control and switch must be positioned to al low brake lever to travel throughout entire range without contacting switch body.MAINTENANCE WHEELS Inspect all wheels for runout or damage. Check wheel nuts and ensure they are tight. Do not over tighten the wheel nuts. WHEEL, HUB, AND SPINDLE TORQUE TABLE Front Spindle Nut ttem Specification Front Wheel Nuts 20 Fibs Rear Wheel Nuts 50 FtLbs Refer to procedure listed in Chapter of Final Drive Rear Hub Retaining Nut 80 FtLbs WHEEL REMOVAL FRONT OR REAR 1. Stop the engine, place the transmission in gear and lock the parking brake. 2. Loosen the wheel nuts slightly. 3. Elevate the side of the vehicle by placing a suitable stand under the footrest frame. 4. Remove the wheel nuts and remove the wheel. WHEEL INSTALLATION 1. With the transmission in gear and the parking brake locked, place the wheel in the correct Position on the wheel hub. Be sure the valve stem is toward the outside and rotation arrows ‘on the tire point toward forward rotation, 2. Altach the wheel nuts and finger tighten them, Install as shown at right for front or rear wheels. 3. Lower the vehicle to the ground. 4, Securely tighten the wheel nuts to the proper torque listed in the table above, CAUTION: 't wheels are improperly installed it could affect vehicle handling and tire wear. On rear wheel nuts, make sure tapered end of nut goes into taper on wheel 12 (Sy Front Flange nuts: install with flat side against wheel = Rear Tapered nuts : install with tapered side against wheelMAINTENANCE TIRE PRESSURE Tire Pressure Inspection Front Rear fo 7 20.520.5KPa 2720.5KPa TIRE INSPECTION CAUTION: Maintain proper tire pressure. Refer to the warning tire pressure decal applied to the vehicle. Improper tire inflation may affect ATV maneuverability, When replacing a tire always use original equipment size and type and replace in pairs. The use of non-standard size or type tires may affect ATV handling. TIRE TREAD DEPTH Always replace tires when tread depth is worn to 1/8" (3mm) or less. A WARNING Operating an ATV with wom tires will increase the possibilty of the vehicle skidding easily with possible loss of control. Wom tires can cause an accident. Always replace tires when the tread depth measures 1/8" (.Scm) or less. FRAME, NUTS, BOLTS, FASTENERS Periodically inspect the tightness of all fasteners in accordance with the maintenance schedule. Check that all cotter pins are in place. Refer to specific fastener torques listed in each chapter. 13 Tread Depth 1/8” (3 mm)FUEL SYSTEM FUEL TANK ASSEMBLY Vent line routed Smoothly into center of steering post poe >| [| Pec Outlet / “1 (On)" Silver fitting (short stand pipe) to “Reserve” (marked 2) on Gold fitting (tall stand pipe) to fuel valve “ON” (marked 1) on fuel valveBODY/SUSPENSION A-ARM REPLACEMENT Elevate and safely support vehicle with weight removed from front wheel (s). 2. Remove cotter pin from ball joint cup at wheel end of A-arm and loosen nut until it is flush with end of cup. 3. Using a soft face hammer, tap nut to loosen A-arm from bolt. Remove nut and A-arm from hub strut assembly. 4, Loosen two bolts on A-arm by alternating each about 1/3 of the way until A-arm can be removed. Examine A-arm shaft. Replace if worn. Discard hardware, 6. Insert A-arm shaft into new A-arm. Bolt 30 ft. Ibs. Vehicle Frame es eA) (4INm) LAErewe Ss tm 8 l Grease Fitting Bal jintcup Bolt 30 ft. Ibs. ~ (41Nm) { ‘Arm Shaft Washer 26ft.Ibs —B— mut > i ox “nn Es cotter pin 7. Install new A-arm assembly onto vehicle frame. Torque new bolts to 30 ft. Ibs. (41.4 Nm). The locking features on the existing bolts were destroyed during removal. DO NOT reuse old bolts. Serious injury or death could result if fasteners ‘come loose during operation. 8, Attach A-arm to hub strut assembly. Tighten ball joint nut to 25 ft. Ibs. (35 Nm). If cotter pin holes are not aligned, tighten nut slightly to align. Install a new cotter pin with open ends A-arm Attaching Bolt Torque: toward rear of machine. Bend both ends in 30 ft. Ibs. (41 Nm) ‘opposite directions around nut. Ball Joint Cup Nut Torque: 9. Locate grease fitting in center of A-arm and 25 ft. Ibs. (85 Nm) pump A-arm full of grease. ) (SYS Upon A-arm installation completion, test vehicle at low speeds before putting into regular service. 15BODY/SUSPENSION SHAFT RIDE SWINGARM Threaded pivot Torque: 120ft. Ibs (165 Nm) Mey, thy, ra taper Roll ‘Swing Arm pivot nan ‘ 14ft. Ibs (19 Nm) Seal 0 Swingarm pivot Torque: 120ft. Ibs (165 Nm) Swingarm asm Installation + Screw swing arm pivots into frame on each side (about 3 tums) + Install swing arm asm in frame with lubricated brg taper roll, and install. seal in each side of swing arm asm. + Apply Loctite 242 to RH swing arm pivot. + Tighten swing arm pivot until both are engaged in tapered roll + Adjust right side swing arm pivot inward until firmly seated against bearing, torque to 120 ft. Ibs. (165 Nm) + Torque left side swing arm pivot to 14 ft. Ibs. (19 Nm) + Apply Loctite 242 (Blue) to exposed threads of swing arm pivot and threaded pivot. + Torque threaded pivot to 120 ft. Ibs. (165 Nm). 16BODY/SUSPENSION FRONT STRUT WELDMENT REPLACEMENT 1. Hold strut rod with holder wrench and remove top nut. 2. Compress spring using strut spring compressor tools. Remove upper strut pivot assembly. Remove coil spring and collapse strut cartridge. Remove two pinch bolts from strut casting. Remove strut cartridge. Install cartridge until bottomed in strut casting, enenae Install pinch bolts with wire clamp (s). Torque pinch bolts to 15 ft. Ibs. (21 Nm). 9. Reassemble spring and top pivot assembly. Be sure all pars are installed properly and seated fully. 10. Torque strut rod nut to specification. Do not over torque nut. Strut Rod Nut Torque 15 ft. tbs. (21 Nm) 7BODY/SUSPENSION FRONT STRUT BALL JOINT REPLACEMENT 1. Loosen front wheel nuts slightly. 2. Elevate and safely support machine under footrest/trame area, CAUTION: Serious injury may result if machine tips oF falls.Be sure machine is secure before beginning this service procedure. 3, Remove wheel nuts and wheels 4, Remove cotter pin (A) from ball joint castlenut, 5. Remove castle nut (B) and separate A-arm (C) from ball joint stud. 6. Remove screws (D) and ball joint mounting bracket (E). 7. Using ball joint cup removal/installation tool kit, remove ball joint cup (F) from strut housing. Refer to photos at right. + Install puller guide (A). + Thread bolt (C) with nut (B) onto ball joint stud as shown. + Hold bolt (C) and turn nut (B) clockwise until ball joint is removed from strut housing, 8 To install new ball joint cup: + Insert new ball joint (E) into driver (F) + Drive new ball joint cup into strut_housing until fully seated. 9. Apply Loctite 242 (blue) to threads of mounting bracket screws or install new screws with pre applied locking agent. Torque screws to 8 fi.lbs. (11 Nm). 10. Install A-arm on ball joint cup and torque castle nut to 25 ft. Ibs. (35 Nm) 11. Reinstall cotter pin with open ends toward rear of machine.BODY/SUSPENSION STEERING POST ASSEMBLY Grease Fitting a 12 ftlbs.(16Nm) —— 0 —_ Hand tighten. Align cotter pin hole. Install cotter pin. Bend both ends of cotter pin around nut in opposite directions. Check steering, must move freely and easily from full left to full right without binding. erFINAL DRIVE | Item Specification Front Wheel Nuts 20 Ft.Lbs Rear Wheel Nuts 50 Ft.Lbs | Front Hub Nut 12 FtLbs Rear Hub Retaining Nut 80 Ftlbs ™ Refer to exploded views and text for torque values of other fasteners, CAUTION: Locking nuts, and bolts with pre-applied locking agent should be replaced if removed. The self-locking properties of the nut or bolt are reduced or destroyed during removal. 20FINAL DRIVE FRONT HUB DISASSEMBLY/INSPECTION 1. Elevate front end and safely support machine under footrest/trame area. CAUTION:Serious injury may result if machine tips or falls.Be sure machine is secure before beginning this service procedure. Wear eye protection when removing bearings and seals. 2. Check bearings for side play by grasping tire/ Wheel firmly and checking for movement.it should rotate smoothly without binding or rough spots. 3. Remove wheel nuts and wheel. 4, Remove brake caliper. 8. Remove hub cap, cotter pin, front spindle nut, and washer. 6. Rotate each bearing by hand and check for smooth rotation. Visually inspect bearing for ture, dirt, or corrosion. Replace bearing if moisture, dirt, corrosion, or roughness is evident. 21FINAL DRIVE FRONT HUB DISASSEMBLY, CONT. 10. "1 12. Place a shop towel on hub to protect sur- face. Carefully pry seal out of hub. Do not damage the surface of the seal. clean the hub, Remove spacer. Inspect spacer for wear or damage. Measure length of spacer and replace if worn beyond service limit or if ends are rounded. Drive bearing out using a drift punch through opposite side of hub and discard. Drive other bearing out and discard. Clean hub and spacer thoroughly.FINAL DRIVE FRONT HUB ASSEMBLY 1. Drive or press one new bearing into hub using a bearing driver. CAUTION: Do not drive on the inner race of the bearing. Coat the new bearing with special grease. 2. Drive or press the other bearing into hub until seated against the hub shoulder. 3. Install seal into hub (with numbers facing out) until flush with end of seal bore. Do not damage the surface of the seal. 23FINAL DRIVE FRONT HUB INSTALLATION 1. Inspect spindle seal and bearing surface for wear or damage. Apple grease to spindle. Install hub on spindle. Apply grease to washer. . Install spindle nut . open 2x4 Spindle Nut Torque: 40 ft.lbs. (65.0 Nm) 6. Install a new cotter pin. Tighten nut slightly if necessary to align cotter pin holes. 7. Rotate hub and check for smooth operation. Bend both ends of cotter pin around end of spindle in different directions. 8. Lightly grease a new O-ring and install on hub cap. 9. Install hub cap. 10. Rotate hub. It should rotate smoothly without binding or rough spots or side play. 11. Install brake caliper using new bolts. Tighten bolts to specified torque. CAUTION: New bolts have a pre-applied locking agent which is destroyed upon removal. Always use new brake caliper mounting bolts upon assembly. 12, Install wheel and wheel nuts and tighten evenly in a cross pattem to specified torque. Front Wheel Nut Torque 2oft. Ibs. (27 Nm) 24 Flange nuts: install with flat side against whee!FINAL DRIVE REAR HUB INSPECTION 1. Support. machine securely with rear wheels elevated. 2. Grasp wheel/hub and check for movement. 3. If movement is detected, inspect hub, hub nut torque and bearing condition and correct as necessary. REAR AXLE REMOVAL 1. Lock the parking brake. Remove left rear axle cap. Remove cotter pin. Loosen the nut slotted. Loosen-but do not remove-the wheel nuts. Safely support the rear of the ATV. CAUTION: | oR eR Serious injury could occur if machine tips or falls. 6. Remove left wheel. 7. Remove hub. NOTE:This ATV requires brake caliper to be removed from brake disc before hub can be removed. 8. Remove brake hose clamp and brake shield. 25FINAL DRIVE REAR AXLE REMOVAL, CONT. 9. Remove rear brake caliper and support it from machine frame. 10. Remove rear brake disc. 11. Remove skid plate. 12. Remove (3) left swing arm asm bolts 13. Remove (4) axle tube bolts from rear gearcase, 14, Slide axle through rear gearcase to the right enough to allow the axle tube to slip off between axle and swing arm asm. 26FINAL DRIVE REAR AXLE REMOVAL, CONT. 15, Remove ting retainer int and spacer from axle. 16. Slide axle through the gearcase and remove from vehicle. 17. Remove o-ring seals from both sides of gearcase and discard. REAR AXLE INSTALLATION 1. Grease and install _new o gearcase. 2. Slide axle through rear gearcase until ring retainer int groove is accessible to the left of gearcase. 3. Install new ring retainer int and spacer. ings on rear NOTE: Spacer should enclose ring retainer int. See previous photo on removal step 15. 4. Slide axle tube assembly over axle shaft until it ‘engages the swing arm asm, 5. Install (4) new axle tube bolts loosely. 6. Install (3) left swing arm asm bolts and torque to 85 ft/Ibs. 7. Torque (4) axle tube bolts in a cross pattern to 60 ft-/bs. 8. Re-install skid plate and torque bolts to 25 ft. ibs. 9. Install new greased o-ring on axle and slide brake disc on splines of the axle 10. Install brake caliper on brake dis and torque bolts to 18 ft/Ibs. 27 Grease and install new o-ringsFINAL DRIVE REAR AXLE INSTALLATION 11. Anchor the brake hoses to the swing arm asm using the hold down clamp. 12. Install wheel hub, large flat washer. 13. Install cone washer with domed side facing outward. 14. Torque axle nut and whee! nuts. Rear Hub Nut Torque: 80 ft. Ibs. (110.6 Nm) Rear Wheel Nut Torque: 20ft. tbs. (27 Nm) 16. Install a new cotter pin. Tighten nut slightly to align holes if required. 16. Install hub cap. REAR AXLE BEARING REMOVAL 1. Remove left wheel and hub. (See page 25 of rear axle removal, steps 1-7) 2. Remove rear brake caliper and support it from machine frame, 3. Remove rear brake disc. 28FINAL DRIVE REAR AXLE BEARING REMOVAL 4, Slide axle through rear gearcase to the right as far as it will go. NOTE: Require retaining ring be removed before sliding axle through gearcase. ring, slide axle back,remove bearing 5. Remove outer axle seal and discard. 6. Remove outer bearing and spacer. 29FINAL DRIVE REAR AXLE BEARING REMOV, 7. Remove inner bearing retaining ring and inne REAR AXLE BEARING INSTAL! 1. Clean bearing surface on axle tube and bearing (s), retaining ring and seals rever, steps 1-8 of rear axle bearing removal. 2. Torque brake caliper, rear hub nut, and whee! nuts to specifications. Brake Cliper Torque: 18 ft. Ibs. (24.8 Nm) Rear Hub Nut Tprque: 80 ft. tbs. (110.6 Nm) Rear Wheel Nut Torque: 20 ft. Ibs. (27 Nm)FINAL DRIVE REAR _GEARCASE DISASSEMBLY | 1. Drain and properly dispose of used cil. 2. Remove bolts and output shaft cover.The output shaft assembly will typically come out of the gearcase with the cover. 31FINAL DRIVE REAR GEARCASE DISASSEMBLY, CONT! 3. Remove ring gear assembly from the act ut cover. 4, Remove ring gear bearing shim (C) from the cover and retain for re-assembly. 5. Remove and discard the output cover seal (0) and O-ring, 6. Remove input cover and O-ring (E). 7. Remove pinion shaft assembly. Inspect pinion gear for chipped, broken or missing teeth. Replace assembly if necessary. 32FINAL DRIVE REAR GEARCASE ASSEMBLY Replace all O-rings,seals,and worn components. 2. Press pinion shaft seal into input cover until flush with sealing surface, 3. Inspect pinion shaft: bushing. 4, Inspect bearings on rear axle and pinion shafts. To replace,press new bearing on to shaft. NOTE: Due to extremely olose tolerances and min- imal wear,the bearings must be inspected visually, and by feel. While rotating bearings by hand,inspect for rough spots.discoloration,or corrosion. The bear- ings should turn smoothly and quietly,with no de- tectable up and down movement and minimal movement side to side. 5. Clean pinion shaft and snap ring with PrimerN™ and apply LocTite™ 271 or 272 to threads. Tighten lock nut to specificaion. INSTALL SNAP_RING 6. Install pinion shaft and input cover plate with new o-ring and torque bolts to 25 ft. Ibs. Cover Bolts Torque 25 ft. Ibs. (34 Nm) 33 a’ \< do 067 Inspect Bearing Inspect BushingFINAL DRIVE REAR GEARCASE Af 7. Install ring gear assembly (A\ NOTE: The same shim thick ring gear bearing must also cover button. 8. Install output cover with new. bolts to 25 ft. Ibs.FINAL DRIVE REAR GEARCASE EXPLODED VIEW Bolt o!"_ SEAL DOWEL PIN ‘OUTPUT COVER — Xs ~ Se O-RING Boum S THRUST BUTTON BEARING 2 RING GEAR OIL PLUG VENT BEARING & one HOUSING INPUT COVER BOLTS PINION P BUSHING SHAFT BEARING WASHER SS RETAINER SEAL SEAL O-RING @ WASHER OIL PLUG REAR DRIVE ASSY COMPLETE 35TRANSMISSION SHIFT ROD REMOVAL IMPORTANT: To change fluid, remove selector box assembly, disassemble, clean, and assemble. 1. Remove parts that interfere with access to shift selector (seat, right side panel, and exhaust heat shield, etc.) 2. Disconnect the two linkage rods from gear shift selector slides. 3. Remove five bolts attaching gear shift selector to the mounting bracket. 4, Lift gear selector out of mounting bracket and away from frame. SHIFT ROD DISASSEMBLY CAUTION: Wear eye protection during this procedure.Read each step completely before proceeding.Essential parts may be lost or damaged if you do not heed this caution! 4. Clamp shifter housing lightly in a soft jawed vice. Using a cross pattern, loosen each of the four screws holding the cover to the shitter housing. Loosen each screw only a few tums, then proceed to another screw. IMPORTANT: These parts are under pressure from the internal springs. 36TRANSMISSION SHIFT ROD DISASSEMBLY, CONT. 2. Carefully pull the cover and shift lever from the shifter housing. 3. Set the shift cover lever assembly aside. 4, Remove the three springs from shifter housing. 5. Slowly tit shifter housing sideways to drain ol. IMPORTANT:Do not tip shifter housing upside down or detent bullets and stop pin may fall out. Check for signs of moisture in the shifter housing. Inspect shift boot closely if moisture is present in selector box. 6. Tap shifter housing, top down, against a hard, smooth, flat surface to jar the dowel pin and two detent bullets loose. Pull the detent bullets and the dowel pin out of the shifter housing. 7. Remove the two slides, one at a time. IMPORTANT:The LH (low) slide has two short notches and the RH (high/rev) slide has one short and one long notch. The slides must be replaced in the proper channels. 8 Inspect O-rings for damage. Replace if any damage is found, 9. Flush housing with parts washer fluid or Penetrating oil to remove all moisture. 10. Dry alll parts and remove any corrosion with a wire brush. a7 Detent Bullet RUS Hon Revers {{shor.tLond loch) Detent _Detent Bullet Spring / Low 2 short Notches Selector SlidesTRANSMISSION SHIFT ROD ASSEMBLY 1. Insert slides into shifter housing, taking care not to cut or tear O-ring in the process. IMPORTANT: The LH slide has two short notches and the RH side has one short and one long notch. The slides must be replaced in the proper channels for the shifter to function properly 2. Replace detent bullets, dowel pin, and springs by reversing steps 5-7 of shift rod Disassem- by. 3. Clamp shifter housing lightly in a soft jawed vise. 4, Fill shifter housing with OW -40 All Season Synthetic motor oil. The oil level should be at ‘one half the height of the slides (approx. 1 oz Gear Shift Selector Capacity: 1 oz. ‘0W-40 All Season Synthetic Oil CAUTION: Too much oll could cause the shift rod to hydrolock. Be sure the selector box is level when adding oil. 5. Wipe shift rod dry, clean surfaces of cover and selector box with Loctite Primer T and place a bead of Loctite 518 Gasket Eliminator or 3 Bond 1215 completely around the edge of the shifter housing. 6. Carefully reattach shift cover lever assembly to shifter housing. Make sure slides are in neutral, or butterfly may be damaged. 7. Torque cover screws to 12 ft. Ibs. (1.7 kg-m),TRANSMISSION SHIFT ROD INSTALLATION 1. Place shift rod back into the mounting bracket and replace five bolts. 2. Reconnect linkage rods to shift rod slides. Adjust as required. See linkage adjustment procedures. 8. Replace remaining parts. BOOT REPLACEMENT NOTE: If moisture is found in the shift rod the boot should be replaced, 1. Using a slotted screwdriver, remove cap from gear shift knob. Remove torx screw securing knob to shift lever. Pull selector knob off shift lever. Remove band clamp on rubber boot. Slide boot off shift lever and replace with a ew one. 6. Apply TV silicone to shift lever to seal top of boot. 7. Place band clamp in position and tighten using CV boot clamp pliers. 8. Replace shift knob, securing it to shift lever with screw removed in step 2. 9. Push shift knob cover back into place. Allow approximately 12 hours for ATV silicone to cure. eae Seal with RTV siliconeTRANSMISSION ENGINE AND TRANSMISSION REMOVAL 1. Switch fuel cock to "OFF". 2. Remove seat,rear rack,tight and left side cov- ers,rear fenders,right and left footrests,air box and exhaust system. 3. Remove CTV outer cover, drive and driven clutches, and feed and return hoses ( refer to Engine chapters). 4, Remove shift rods A and B. 5. Remove throttle cable wire connected to car bu- rettor. 6. Disconnect engine from wiring hamess com- pletely. Disconnect gear position indicator switches. 8 Remove fuel line connected to carburettor and drain fuel. 9, Remove bottom bracket bolt (M8x90) of engine. 10. Remove front engine mount brackets and re- move engine from frame. 11, Remove rear covers from transmission. ~ 12, Remove roll pin from drive shaft 13. Remove lower left bracket, rear bracket and right mount bolts.(M10x1.25x70) 14, Remove transmission from frame and remove drive shaft 15. Remove support bracket and rubber bumper.New! TRAr ENGINE AND TRANSMISSION INSTALLATION 1. Install rubber bumper on support bracket and then install support bracket on transmission. Tighten fasteners. 2, Install right side transmission bracket in right side frame bracket. 3. Install drive shaft on rear output shaft, align it to roll pin hole and install roll pin. 4, Install rear bracket and lower left bracket on frame and then on transmission. 5. Install engine and front engine mount brackets in frame. 6. Install engine on bottom bracket. 7. Install rear inside cover components on trans- mission. 8. Link engine and transmission together with spe- cial tools I and Il, making sure center dis- tance of engine shaft and transmission main shaft is 252mm and distance of side surface and shaft shoulder 62.5 mm and CVT works properly. 9. Tighten transmission mounting fasteners in steps from A to E. 10. Tighten engine mounting fasteners in top -to- bottom order. 11. Press rubber bumper against engine and tight- en nut 12, Remove special tools 19. Install both drive and driven clutches and outer CVT cover. aTRANSMISSION TRANSMISSION DISASSEMBLY 1. Place both belleranks in neutral position. 2. Remove gear icator switches. IMPORTANT:The gear switches must be removed prior to disassembly. 3. Remove case cover screws. 4. Remove the transmission cover bolts. 5. With a soft face hammer tap on the cover bosses and carefully remove the main cover. 6. Remove bearing and 46 tooth gear helical 427. Remove input shaft, reverse shaft, and both shift fork shafts as an assembly. 8 Remove pinion shaft retainer plate and pinion shaft. (107) 9. Remove front cover screws. 43TRANSMISSION TRANSMISSION DISASSEMBLY, CONT. 10. Note position of shim washers and thrust button. 11. Remove shafts as an assembly. 12. Clean all components in a parts washer and inspect for wear. 13. Inspect engagement dogs of gears and replace if edges are rounded. 14, Inspect gear teeth for wear, cracks, chips or broken teeth. 15. Remove seals from transmission case. IMPORTANT: New seals should be installed after the transmission is completely assembled. 16. Inspect bearings for smooth operation. Check for excessive play between inner and outer race. 44TRANSMISSION TRANSMISSION ASSEMBLY 1. Install rear output shaft as an assembly. 2. Before installing the cover make sure the sealing surfaces are clean and dry, and shafts are fully seated in the transmission case. Apply Loctite™ 518 or 3 -Bond 1215 to mating surfaces. 3. Reinstall cover and torque bolts in a criss — cross pattern in 3 steps to 18 ft. Ibs. (25 Nm). 4. Install new rear shaft output seals. 5. Install pinion shaft (10T) with bearing. 6. Install bearing retainer plate with flat side toward bearing. 7. Apply Loctite™ 242 (Blue) to screw threads and torque screws to 18 ft. Ibs. (25 Nm) 8. Assemble shafts and shift forks, 45TRANSMISSION TRANSMISSION ASSEMBLY, CONT. 9. Carefully install high/reverse shaft assembly and gear cluster as a unit into their respective bearing case areas. Tap with a soft face hammer to seat shaft assemblies. IMPORTANT:Make sure shift shaft pins are properly Positioned in the slot on selector arms. IMPORTANT:Be sure gear indicator switch (es) are removed from transmission case before installing shafts. 10. Install output shaft and gear assembly along with sprocket and chain. 11. Prior to reinstalling the main cover make sure the mating cover surfaces are clean and dry, and shafts are fully seated in transmission case. Apply Loctite™ 518 or 3-Bond 1215 to mating surfaces. 12. Reinstall main cover and torque bolts in a cross pattern in 3 step to 18 ft. Ibs. (25 Nm) 13. Install new input shaft seal. 14, Install gear indicator switches. Apply Loctite™ 242 (blue) to threads of switch screws and torque to 13-16 in. Ibs. (1.5-1.9 Nm). 46TRANSMISSION TRANSMISSION EXPLODED VIEW SEAL 25x47%8 os a OLT M25 BEARING 62053, MAIN COVER a) DOWEL PIN wnpur sHAeT BEARING 6204 ~N Ss IGEARMELICAL 95T — INTERLOCK PIN nteRLock BRACKET a SPRING CHAIN INTERLOCK PIN SPACER —, ‘NUT. GEAR 167. sxe NN GEAR 31T —, seanne 6204 “Qe scanna 2 —e © THRUST WASHER — snap ring — poa GEAR— S~seanine sooica SNAP RING—G S©_ NUT MB THRUST WASHER— © EAR HELICAL 46T WP wSHER | SPnocker sf v #” @ SCREW Mext0 oe Tae scaring RETAINER PLATE Woot pee iy a flow S SNAP RING —~ HIGH’ eo ano Bet ase a NEEDLE. anals 2 3 \eearina 6305sT VENT TUBE FITTING— ‘GEAR s5T__—* Eerie runusr wasven BD) SNAP RING, “— ENGAGEMENT SS if TuAsT SCREW M4—aa TST sean inpicator swircn WASHER 4 SEARING eS: GEAR INDICATOR SwiTcH &Jezoa ~ S *Spiwow shart sot GEARCASE, RH ‘SHAFT REAR OUTPUT [THAUST WASHER THRUST BUTTON GEAR \ 2 @ ‘THRUST WASHER | J ° =e-BOLT Max2s SEAL, 25%47%8 pour wie” 0 Jaa} y ‘eg —DRAIN SCREW SEALING WASHER EnreNG dX BEARING 6205¢3 SHIFT LOW SHIM + ore) DOWEL PIN SHIFT ROD HIGH/REVERSE a7TRANSMISSION TROUBLESHOOTING CHECKLIST Check the following items when shifting dificulty is encountered + Idle speed adjustment + Transmission oil type/quality Transmission torque stop adjustment (where applicable) + Engine torque stop adjustment (where applicable) + Drive belt deflection + Loose fasteners on rod ends + Loose fasteners on selector box + Worn rod ends, clevis pins, or pivot arm bushings + Linkage rod adjustment and rod end positioning + Shift selector rail travel + ‘Wor, broken or damaged intemal transmission components “NOTE: To determine if shitting difficulty or problem is caused by an internal transmission problem, isolate the transmission by disconnecting linkage rods from transmission bellcranks. Manually select each gear range at the transmission bellerank, and test ride vehicle. If it functions property, the problem is outside the transmission. I" transmission problem remains, disassemble transmission and inspect all gear dogs for wear (rounding), damage Inspect all bearings, circlips, thrust washers and shafts for wear.BRAKES SPECIFICATIONS Front Brake Caliper Item Standard | Service Limit Brake Pad Thickness 275'/7.0mm -150°/3.81mm Brake Disc Thickness .150-.164"/3.810-4.166mm .140°73.556mm Brake Disc Thickness Variance | — ~ 002"/.0 Between Measurements = 2 Brake Disc Runout - 005"/.127mm Rear Axle Brake Caliper Item Standard Service Limit Brake Pad Thickness a .278°/7.0mm -150°/3.81mm Brake Disc Thickness 177-187"/4.496-4.750mm 167"/4.242mm Brake Disc Thickness Variance — Between Measurements _ it = poe 05 ime Brake Disc Runout - (005"/.127mm Master Cylinder |.D.—Front 750" Master Cylinder 1.D.-Aux. Rear 500" TORQUE SPECIFICATIONS — Torque Torque |(ft. bs. except where noted") (im) Front Caliper Mounting Bolts 18.0 25 Rear Axle Caliper Mounting Bolts 18.0 25 Master Cylinder Mounting Bolts *56 in. Ibs. | 60 “Master Cylinder Reservoir ~ Cover Bolt _ 7 | Hand Brake Hose Bolt 15.0 at Front Brake Disc 18.0 25 Front Wheel Mounting Nuts 15.0 a4BRAKES BRAKE SYSTEM SERVICE NOTES Disc brake systems are light weight, low maintenance, and perform well in the conditions ATVs routinely encounter. There are a few things to remember when replacing disc brake pads or performing brake system service to ensure proper system function and maximum pad service life. * Optional pads are available to suit conditions in your area. Select a pad to fit riding style and environment. + Do not over ~fill the master cylinder fluid reservoir. + Make sure the brake lever and pedal returns freely and completely. + Adjust stop pin on front caliper after pad service. + Check and adjust master oylinder reservoir fluid level after pad: service. + Make sure atmospheric vent on reservoir is unobstructed. + Adjust auxiliary brake after pad service. + Test for brake drag after any brake system service and investigate cause if brake drag is evident. + Make sure caliper moves freely on guide pins (where applicable). * Inspect caliper piston seals for foreign material that could prevent caliper pistons from returning freely. * Perform a brake bumishing procedure after installing new pads to maximize service life. 50BRAKES BRAKE NOISE TROUBLESHOOTING Dirt or dust buildup on the brake pads and disc is the most common cause of brake noise (squeal caused by vibration). If cleaning does not reduce the occurrence of brake noise, Disc Brake Quiet (available from most auto parts stores) can be applied to the back of the pads. Follow directions on the package. This will keep pads in contact with caliper piston(s) to reduce the chance of squeaks caused by dirt or dust. Brake Noise Troubleshooting Possible Cause Remedy Dirt, dust, or imbedded material on pads or disc | Spray disc and pads with an equivalent non— flammable aerosol brake cleaner. Remove pads and/or disc hub to clean imbedded material | from disc or pads. Pad{(s) dragging on disc (noise or premature pad wear) Improper adjustment Adjust pad stop (from calipers) Insufficient lever or pedal clearance Check position of controls & switches Master cylinder reservoir overfiled Set to proper level Master cylinder compensating port restricted Clean compensating port Master cylinder piston not returning completely | Inspect. Repair as necessary Caliper piston(s) not returning Clean piston(s) seal Operator error (riding the brake / park brake | Educate operator applied) Loose wheel hub or bearings Check wheel and hub for abnormal movement, Brake disc warped or excessively worn Replace disc. - Brake disc misaligned or loose Inspect and repair as necessary. If noise does not change when brake is applied check other sources. Inspect and repair as necessary. Noise is from other source (chain, axle, hub, disc or wheel ) | L 51BRAKES HYDRAULIC BRAKE SYSTEM OPERATION [Typical Hydraulic Brake System E Compensating port compensates Must be clear to allo Ea r temperature changes by allowing proper diaphragm ¥ oo fluid back to master cylinder. movement. —__ F | 1 A B Moveable G > BrakePad The brake system consists of the following components or assemblies: brake lever, master cylinder, hydraulic hose; brake calipers (slave cylinder); brake pads; and brake discs, which are secured to the drive line. When the hand activated brake lever (A) is applied it contacts a piston (B) within the master cylinder. As the master cylinder piston moves inward it closes a small opening (compensating port) (C) within the cylinder and starts to build pressure within the brake system. As the pressure within the system is increased, the piston (D) located in the brake caliper moves outward and applies pressure to the moveable brake pad. This pad contacts the brake disc and moves the caliper in its floating bracket, pulling the stationary side pad into the brake disc. The resulting friction reduces brake disc and vehicle speed. As the lever pressure is increased, the braking affect is also increased. The friction applied to the brake pads will cause the pads to wear. As these pads wear, the piston within the caliper moves further outward and becomes self adjusting. Fluid from the reservoir ‘fils the additional area created when the caliper piston moves outward. Brake fluid level is critical for proper system operation. Too ittle fluid will allow air to enter the system and cause the brakes to feel spongy. Too much fluid could cause brakes to drag due to fluid expansion, Located within the master cylinder is the compensating port (C) which is opened and closed by the master cylinder piston assembly. The port is open when the lever is released and the master oylinder piston is outward. As the temperature within the hydraulic system changes, this port compensates for fluid expansion (heated fluid) or contraction (cooled fiuid). During system service, be sure this port is open. Due to the high temperatures created within the system during heavy braking, it is very important that the master cylinder reservoir have adequate space to allow for fluid expansion. Never overfill the reservoir! Fill to 1/4"-5/16" (.64-.80 cm) from top of the cylinder. This system also incorporates a diaphragm (E) as part of the cover gasket; and a vent port (F) located between the gasket and the cover. The combination diaphragm and vent allow for the air above the fluid to equalize pressure as the fluid expands or contracts. Make sure the vent is open and allowed to function. If the reservoir is over filled or the diaphragm vent is plugged the expanding fluid may build pressure in the brake system leading to brake failure. When servicing the ATV brake systems use only DOT 3 high temperature brake fluid. The brake fluid is sold in 5.5 02. Bottles. WARNING: Once a bottle is opened, use what is necessary and discard the rest jn accordance with local laws. Do not store or use a partial bottle of brake fluid. Brake fluid is hygroscopic, meaning it rapidly absorbs moisture. This causes the bolling temperature of the brake fluid to drop, which’ can lead to early brake fade and the possibilty of serious injury. 82BRAKES DUAL HYDRAULIC CALIPER BLEEDING This caliper is a dual opposed piston design, with two independent hydraulic systems contained in the same caliper body (see illustration below). The caliper pistons are T-shaped, which allows both hand and foot brake to use the same caliper piston, but remain separated by seals. The hand brake system applies hydraulic pressure to both front calipers and only the outer diameter of the rear caliper pistons. The auxiliary (foot) brake applies pressure to the inner portion of the rear caliper pistons. Because the hand and foot brake hydraulic systems are separate, there are also two bleed screws-one for the outer fluid chamber (hand brake), and one for the inner fluid chamber (foot brake). The basic procedure for bleeding the brake system is the same as outlined on page 54-S5;however, each system must be bled separately. Hydraulic Auxiliary Brake inspection and adjustment is outlined on page 10. Foot Brake Hand Brake Bleed Fitting Sealing “O” Rings Uppermost (inner) bleed screw and brake hose (A) f Inner Blead Screw is for hand brake system. a ee Lower (outer) bleed screw and brake hose (B) is for auxiliary (foot) brake system. 53BRAKES. FLUID REPLACEMENT/BLEEDING PROCEDURE NOTE:When bleeding the brakes or replacing the fluid always start with the caliper farthest from the master cylinder. CAUTION: Always wear safety glasses. CAUTION: Brake fluid will damage finished surfaces. Do not allow brake fluid to come in contact with finished surfaces. BRAKE BLEEDING-FLUID CHANGE This procedure should be used to change fluid or bleed brakes during regular maintenance. 1. Clean reservoir cover thoroughly. 2. Remove screws, cover and diaphragm (C) from reservoir. 3. Inspect vent slots (A) in cover and remove any debris or blockage. 4. If changing fluid, remove old fluid from reservoir with similar tool. NTOE: Do not remove brake lever when reservoir fluid level is low. 5. Add brake fluid to the indicated MAX level inside reservoir. DOT 3 Brake Fi 6. Begin bleeding procedure with the caliper that Fowand Hand Brg ho is farthest from the master cylinder. Install a a box end wrench on the caliper bleeder screw. a feeraee ‘Attach a clean, clear hose to the fitting and Se fo place the other end in a clean container. Be 4s? ne i sure the hose fits tightly on the fiting sy / ee NOTE: Fluid may be forced from supply port (B) . ee When brake lever is pumped. Place diaphragm (C) in reservoir to prevent spills. Do not install cover. uxilaty brake bloeder screw Hand brake blaodar SeraBRAKES BRAKE BLEEDING-FLUID CHANGE CONT. 7. Slowly pump brake lever (D) until pressure builds and holds. 8. While maintaining lever pressure, open bleeder screw. Close bleeder screw and release brake lever. NOTE: Do not release lever before bleeder screw is tight or air may be drawn into caliper. 9. Repeat procedure until clean fluid appears. in bleeder hose and all air has been purged. Add fluid as necessary to maintain level in reservoir. CAUTION: Maintain at least 1/2” (1.27cm) of brake fluid in the reservoir to prevent air from entering the master cylinder. 10. Tighten bleeder screw securely and remove bleeder hose. 11, Repeat procedure steps 5-9 for the remaining caliper (s). 12. Add brake fluid to MAX level inside reservoir. Master Cylinder Fluid Level: MAX level inside reservoir Sight glass must look dark, if sight glass is clear, fluid level is too low 13. Install diaphragm, cover and screws. Tighten screws to specification, Reservoir Cover Torque- 5 in. Ibs. (6 Nm) 14, Field test machine at low speed before putting into service. Check for proper braking action and lever reserve. With lever firmly applied, lever reserve should be no less than 1/2” (1.3em) from handlebar. 1. Check brake system for fluid leaks and inspect all_hoses and lines for wear or abrasion. Replace hose if wear or abrasion is found 85BRAKES. MASTER CYLINDER DISASSEMBLY 1. Clean master cylinder and reservoir assembly. Make sure you have a clean work area to disassemble brake components. 2. Place a shop towel under brake hose connection at master cylinder. Loosen bolt; remove bolt and sealing washers. Brake fluid will damage finished surfaces. Do not allow brake fluid to come in contact with finished surfaces. 3. Remove master cylinder from handlebars. ‘Sight Glass Bolt P J. ‘Cover N Vie Master Cylinder Piston Assy 56BRAKES MASTER CYLINDER DISASSEMBLY 1. Remove cover and diaphragm from master cylinder and dispose of the fluid prolperly. 2 Be sure vents in cover are clean and unobstructed. 3. Remove brake lever. 4, Clean surfaces of the reservoir and master cylinder body. Be sure supply port is clean before reassembly. 5. Remove outer dust seal. Be ready to catch piston assembly. NOTE: The return spring may force piston out when dust seal has been removed. 6. Remove piston assembly and return spring from master cylinder. Replace piston assembly and spring. 57BRAKES MASTER CYLINDER INSPECTION 1. Clean the master oylinder assembly with clean Dot 3 brake fluid, brake parts cleaner, or denatured alcohol. Dry thoroughly. Inspect the bore for nicks, scratches or wear. Replace if damage is evident or if wor. 2. Inspect parking brake for wear. If teeth or locking cam are wom, replace lever. MASTER CYLINDER ASSEMBLY 1. Install new primary and secondary seals on the piston. 2. Select the appropriate master cylinder piston installation tool and insert into master cylinder bore. 58 Return SpringBRAKES MASTER CYLINDER ASSEMBLY, CONT. 8. Dip piston in clean DOT 3 brake fluid, attach spring to piston, and install assembly into installation tool. Do not attempt to install the piston without the required installation tool. Do not allow the lip of the seals to tum inside out or fold. 4. Push the piston assembly through the installation tool using the plunger handle. Continue pushing until plunger is solid against installation tool. 5. Hold piston assembly inward while removing both tools. Install dust seal plate, spring and plunger. Install a new dust seal. Be sure dust seal is completely seated in the groove. NOTE:The piston assembly should move freely in the bore, and spring back against the seal when released. 6. Apply a light film of grease to the lever pin. Install lever and c-clip. 59BRAKES. MASTER CYLINDER INSTALLATION 1. Install master cylinder on handlebars. Torque mounting bolts to 55 in. Ibs. (6 Nm) NOTE:To speed up the brake bleeding procedure the master cylinder can be purged of air before brake hose is attached. Fill with DOTS brake fluid and pump lever slowly two to three times with finger over the outlet end to purge master cylinder of air 2. Place new sealing washers on each side of hand brake hose and torque bolt to specification, Master Ovlindel:Mpuiting Rol Torque to 15 ft. Abs. Torque 55 in. Ibs. (6 Nm) @1Nm Bolt Torque / 15 ft. Ibs. (21 Nm) Sealing Washers Hand brake hose’ 3. Fill reservoir with DOT 3 fluid. 4, Follow bleeding procedure on pages 54-55, Check all connections for leaks and repair if necessary. DOT 3 Brake Fluid 60BRAKES FRONT PAD REMOVAL 1. Elevate and support front of machine. Use care when supporting vehicle so that it does not tip or fall. Severe injury may occur if machine tips or falls. 2. Remove the front wheel. sorew 2-3 tums. Loosen pad adjuster 3, Remove caliper from mounting bracket 4. Push caliper piston into caliper bore slowly using a C-clamp or locking pliers with pads installed. NOTE: Brake fluid will be forced through compen- sating port into master oylinder fluid reservoir when piston is pushed back into caliper.Remove excess fluid from reservoir as required. 5. Push mounting bracket inward and slip outer brake pad past edge. Remove inner pad. 6. Measure the thickness of the pad material, Replace pads if worn beyond the service limit. eee Front Brake Pad Thi ‘New .275'/7.0 mm ‘ Service Limit .160'/3.81 mm a Measure ThicknessBRAKES FRONT PAD ASSEMBLY 1. Lubricate mounting bracket pins with a light film of All Season Grease, and install rubber dust boots. 2. Compress mounting bracket and make sure dust boots are fully seated. Install pads with friction material facing each other. Be sure pads and disc are free of dirt or grease. 3. Install caliper on hub strut, and torque mounting bolts. Front Caliper Mounting Bolts Torque 18 ft. tbs. (25 Nm) 4. Slowly pump the brake lever until pressure has been built up. Maintain at least 1/2" (12.7 mm) of brake fluid in the reservoir to prevent air from entering the brake system. 5. Install the adjuster screw and turn clockwise Until stationary pad contacts disc, then back off 1/2 turn (counterclockwise). 6. Be sure fluid level in reservoir is up to MAX line inside reservoir and install reservoir cap. Master Cylinder Fluid Up to MAX line inside reservoirBRAKES FRONT PAD ASSEMBLY, CONT. 7. Install wheels and torque wheel nuts. 8. It is recommended that a bumishing procedure be performed after installation of new brake pads to extend service life and reduce noise. Start machine and slowly increase speed to 30 mph. Gradually apply bakes to stop machine Repeat procedure 10 times. Front Wheel Nut Torque 20 ft. Ibs. (27 Nm) FRONT DISC INSPECTION 1. Visually inspect the brake disc for nicks, scratches, or damage. 2. Measure the disc thickness at 8 different points around the pad contact surface using a 0-1" micrometer. Replace disc if worn beyond service limit. Brake Disc Thickness New .150-.164" (3.810-4.166 mm) Service Limit .140'/3.556 mm Brake Dise Thickness Variance Service Limit .002” (.051 mm) ifference between measurements 3. Mount dial indicator as shown to measure disc runout. Slowly rotate the disc and read total Tunout on the dial indicator. Replace the disc it tunout exceeds specifications. Brake Disc Runout Service Limit .005" (127 mm) 63BRAKES. 1. Apply heat to the hub in the area of the brake disc mounting bolts to soften the bolt locking agent, 2. Remove bolts and disc. 3. Clean mating surface of disc and hub. 4. Install disc on hub. 5. Install new bolts and tighten to specified torque. CAUTION: Always use new brake disc mounting bolts. The bolts have a pre-applied locking agent Which is destroyed upon removal. Front Brake Disc Mounting Bolt Tora 18 ft. bs. (25 Nm) 64BRAKES FRONT CALIPER REMOVAL "CAUTION: Use care when supporting vehicle so that it does not tip or fall. Severe injury may occur if machine tips or falls. 1. Remove brake pads. See page 61. 2. Using a line wrench, loosen and remove hand brake hose to caliper. Place a container under caliper to catch fluid draining from hand brake hose. 3. Remove brake caliper and drain fluid into container. FRONT CALIPER DISASSEMBLY 1. Remove brake pad adjuster screw. 2. Push upper pad retainer pin inward and slip brake pads past edge. 3, Remove mounting bracket, pin assembly and dust boot. 6BRAKES FRONT CALIPER DISASSEMBLY, CONT. 4, Remove piston, dust seal and piston seal 5. Clean the caliper body, piston, and retaining bracket with brake cleaner or alcohol. NOTE: Be sure to clean seal grooves in caliper body. FRONT CALIPER INSPECTION 1. Inspect caliper body for nicks, scratches or wear. Measure bore size. Replace if damage is evident or if worn beyond service limit. Front Caliper Piston Bore 1.D. Std. 1.191-1.192" (30.25-30.28 mm) Service Limit 1.193" (30.30mm) _ 2, Inspect piston for nicks, scratches, wear or damage. Measure diameter and replace if damaged or worn beyond service Ii Front Caliper Piston 0.0. Std. 1.186-1.1875" (30.13-30.16mm) Service Limit 1.1855" (30.11mm) 3. Inspect the brake disc and pads as outlined for brake pad replacement this section.See page 63.FRONT CALIPER ASSEMBL 1. Install new O-rings in the caliper body! groove is clean and free of residue may drag, 2. Coat piston with clean DOT 3 bral Install piston with a twisting moti pushing inward. Piston should slide ir! of bore smoothly, with light resistance. 3. Lubricate the mounting bracket p. Premium All Season Grease, and ii Tubber dust seal boots. Premium Ail Season Grease | 4. Compress the mounting bracket and the dust seats are fully seated. Install as shown on page 62.Clean the disc with brake parts cleaner or denatured remove any dirt, oll or grease.BRAKES. FRONT CALIPER INSTALLATION 1. Install caliper on hub strut, and torque mounting bolts. Front Caliper Mounting Bolt Torque 48 ft. Ibs. (25 Nm) 2. Install brake hose and tighten securely with a line wrench, 3. Install the adjuster screw and turn until stationary pad contacts disc, then back off 1/2 tur, 4, Follow brake bleeding procedure outlined on pages 54-55. 5. Install wheels and torque wheel nuts to specification. Front Wheel Nut Torque 20 ft, lbs. (27 Nm) NOTE: If new brake pads are installed, it is recom- mended that a burnishing procedure be performed to extend pad service life and reduce noise. Start machine and slowly increase speed to 30 mph, Gradually apply brakes to stop machine. Repeat procedure 10 times.FRONT BRA\ Z 7 9BRAKES. REAR BRAKE PAD REMOVAL 1, Remove caliper mounting bolts and lift caliper off of disc NOTE: When removing caliper, be careful not to damage brake hose. Support caliper so as not to kink or bend brake hose. 2. Push caliper pistons into caliper bore slowly with pads installed. NOTE:Brake fluid will be forced through com- pensating port into master cylinder fluid reser- voir when piston is pushed back into caliper. Remove excess fluid from reservoir as re- quired. 3. Remove brake pad retaining pin, and pad spacer. NOTE: This is a spring pin, do not spread a- part farther than necessary to remove it, 4. Clean pad retainer pin with a wire brush. 5. Clean the caliper w/brake cleaner or alco- hol 6. Measure the thickness of the pad material Replace pads if worn beyond the service lit Rear Brake Pad Thickness New .275" (7.0 mm) Service Limit .150” (3.81 mm) 70BRAKES REAR BRAKE PAD INSTALLATION 1. Install new pads in caliper body. Be sure to put aluminum spacer between pads. 2. Install caliper and torque mounting bolts. DH Brake Caliper “Torque 18 ft. tbs. (25 Nm) 3. Slowly pump the brake lever until pressure has been built up. Maintain at least 1/2" (12.7 mm) of brake fluid in the reservoir to prevent air from entering the master cylinder. Between MIN and MAX lines 4. It is recommended that a bumishing procedure be performed after installation of new brake pads to extend service life and reduce noise. Start machine and slowly increase speed to 30 mph. Gradually apply brakes to stop machine. Repeat procedure 10 times. nmBRAKES REAR CALIPER REMOVAL/INSPECTION 1. Clean caliper area before removal. 2. Using a flare nut wrench, remove hand brake iner) and foot brake (outer) hose. Place a container to catch brake fluid draining from brake hose. 3. Remove caliper. 4. Remove brake pad retaining pin pads, and pad spacer. NOTE:This is a spring pin. Do not spread apart far- ther than necessary to remove it 5. Remove screw and separate caliper halves and remove pistons with piston pliers. 6. Remove O-ring and clean O-ring grooves. 7. Clean disc, caliper body, and pistons with brake cleaner or alcohol. 72BRAKES REAR CALIPER REMOVAL/INSPECTION, CONT. 8 Inspect caliper piston bore for scratches, severe corrosion, or galling and replace if necessary. 9. Inspect surface of caliper piston for nicks, scratches or damage and replace if necessary. REAR CALIPER ASSEMBLY 1. Install new O-rings in caliper body (2 piston seals per caliper half). Be sure O-ring grooves are thoroughly cleaned of all residue, or piston may bind in bore. Apply brake fluid to pistons and install carefully with a twisting motion to ease assembly until fully seated. 2. Install new O-rings between caliper halves. 3, Carefully assemble caliper body, making sure O-rings are properly positioned in groove. Torque body screw evenly to 18 ft. Ibs. Caliper Body Torque 18 ft. Ibs. (25 Nm) Piston sealsBRAKES REAR CALIPER ASSEMBLY, CONT. Install brake pads in caliper body with friction material facing each other. If equipped with a pad spacer, install the spacer between the pads. Install retaining pin through outer pad, pad spacer and inner pad. 5. Install caliper and torque mounting bolts. - Caliper Mounting Bolt Torque — 48 ft, Ibs. (25 Nm) 6. Install brake hose and tighten to specified torque. Bolt Torque 15 ft. Ibs. (21. Nm) 7. Follow bleeding procedure outlined on page 54-55 of this section and refer to system " Hand Brake Hose overview and illustration on page 53. eo —— 8. Field test unit for proper braking action before putting into service. Inspect for fluid leaks and firm brakes. Make sure the brake is not drag- ging when lever is released. If the brake drags, re-check assembly and installation. 74BRAKES REAR BRAKE DISC INSPECTION 1. Visually inspect disc for scoring, scratches, or gouges. Replace the disc if any deep scratches are evident. Rear Brake Disc 2. Use a 0-1" micrometer and measure disc WS thickness at 8 different points around perimeter of disc. Replace disc if worn beyond service limit, Measure Brake Disc Thickness Thickness. New .177-187" (4.496-4.750 mm) Service Limit .167" (4.242 mm) Brake Disc Thickness Variance Service Limit .002" (.051 mm) Difference between measurements 3. Mount dial indicator and measure disc runout, Replace the disc if runout exceeds specifica tions. Brake Disc Runout Service Limit .005" (.127 mm) 75‘ 76ENGINE MAINTENANCE SPECIFICATIONS ENGINE Item Standard Limit Cylinder head: | Warp limit 0.03 mm, Cylinder: | Bore size 70.000-70.005 mm. 704 mm Out of round timit 0.03 mm Camshaft: ‘Cam dimensions Intake "A" 96.545-36.645 mm 36.54 mm "8" 30.021-30.121 mm. 29.92 mm "c" 6.524 mm Exhaust "A" 36.547-36.647 mm 36.45 mm "B 30.067-30.167 mm 29.97 mm ‘c 8 6.48 mm. ” Camshaft runout limit 0.03 mm Cam chain ‘Cam chain type/No. of links DID SC-A-0404A SDH/104 Rocker arm/rocker armshatt: | | Rocker arm inside diameter 12,000-12.018 mm | 12.03 mm Rocker shaft outside diameter 11.981-11.9991 mm 11.995 mm Rocker arm-to-rocker armshaft | clearance 0.008-0.012 mm Valve, Valve seat, Valve guide Valve clearance (cold) IN 0.08-0.12 mm Valve dimensions ex 0.16-0.20 mm ) i ge : ! | D el am 4 "A head diameter IN [ese a | ex 28.4-28.6 mm fed 3.994-3.960 mm 8" face width a 3:394~3.960 mm "CO" seat width IN eee en ae 09-1. mm aoe 0.8-1.2 mm thick 'D" margin thickness w bea aad rs Stem outside diameter IN Bee 5.94 mm Ex 5.960-5.975 mm sleotara Guide inside diameter IN Soe tan 6.05 mm Ee |6.000-6.012 mm eosin 7ENGINE Crankshaft: Crank width "A" Runout limit "C* Big end side clearance "D’ 59.95-60.00 mm 0.03 mm 0.35-0.85 mm. Item Standard Limit Stem-to-guide clearance IN 0.010-0.037 mm 0.08 mm Ex 0.025-0.052 mm 0.1 mm 0.01 mm Seno IN 0.9-4.1 mm 1.6 mm Valve seat width Ex 09-11 mm 1.6 mm Valve spring: Free length (Inner) IN/EX 38.1 mm 36.1 mm (Outer) IN/EX 36.93 mm, 35.0 mm Set length (valve closed) (Inner) IN/EX | 30.1 mm ~ (Outer) IN/EX | 31.6 mm Compressed pressure (inner) IN/EX | 7.8-9.0 kg (Outer) INVEX — 37.22-42.83 kg Tilt limit (Inner) IN/EX : | 2.5°/1.7mm (Outer) IN/EX 2.5°/1.7mm Piston: Piston to cylinder 0.02-0.04 mm 0.15mm clearance Piston size ’D" 69.965-69.980 mm Measuring point "H’ 5 mm Piston pin bore 17.004-17.015 mm 17.045 mm inside diameter Piston pin outside diameter 16.991-17.000 mm 16.975 mm Piston rings: | Top ring Type Barrel End gap (installed) 0.15-0.90 mm 0.45 mm Side clearance (installed) 0.04-0.08 mm 0.12 mm 2nd ring: Type Taper End gap (installed) 0.30-0.45 mm 0.7 mm Side clearance 0.03-0.07 mm 0.12 mm Gil ring: End gap (installed) 0.2-0.7 mm 78ENGINE Item Standard Limit Automatic centrifugal clutch Clutch shoe thickness 3.0 mm 2.0 mm Clutch hosing inside diameter 135 mm 135.5 mm Clutch shoe spring free length 28.1 mm - Weight outside diameter 20 mm 19.5 mm Clutch-in revolution 2,100-2,700 r/min V-belt: V-belt width 22.6 mm 21.0 mm Carburetor: Type CVK 1000-L06-0000 LD. mark THV-052 Ventuly outside diameter | 80 Main jet (Ma) #128 Jet needle (mAs) — | N425-7AD01 Throttle valve size (WN) 10° Pilot air jet (thy) O12 Needle jet (PAs) | 24 Pilot outlet (Na) 20.9 Pilot jet (P.O) #40 Bypass (P) 20.74 Pilot screw (Ps) 19/8 + 3/4 Valve seat size vs) O12 Starter jet 1 (asa) | #42 Starter jot 2 (as2) | 909 Float height (FH) >3.0 Engine idle speed 1,450-1,550 ¢/min Intake vacuum 220-260 mmHg Oil pump: Type Trochoid type Tip clearance | 0.1-0.34 mm 0.4 mm Side clearance 0.013-0.036 mm 0.15 mm Housing and rotor clearance 0.04-0.09 mm 0.15 mm 79ENGINE Item Standard Limit } Radiator: Type Cooling fin with electric fan Width/height/thickness 140/238/24 mm Radiator cap opening pressure Radiator capacity Reservoir tank capacity Thermostatic valve: Valve opening temperature Valve full open temperature Valve full open lift | 110-140kPa (1.1-1.4kg/om?, 1.4-1,4bar) 14 0.35 LENGINE TIGHTENING TORQUES ENGINE Part to be tightened | Part name | Thread Qty “eo Remarks a size Ni [mG Oil check bott - Me 1 7 | 07 Exhaust pipe stud bolt | _ Me 2 13 | 13 Spark plug - M12 1 18 | 18 Cam sprocket cover Bolt Me 2 10 | 10 Cylinder head and cyinder | Nut rr) 4 22 | 22 Oyfinder head and cylinder | Bolt Me 2 1o | 10 (Cam chain side) Valve cover Bolt Me | 5 to | 10 Rotor Nut mie | 1 8 | 80 Valve adjuster locknut | Nut Me 2 4 | 14 Cam shaft bearing stopper | Bolt M6 2 8 | 08 Cam sprocket Bolt Mio 1 60 | 60 Cam chain tensioner (Body) | Bot M6 2 1o | 10 (Plug) | Bott MB 1 8 | 08 Guide stopper 2 | Bott Me 1 10 1.0 Water pump housing cover | Bolt M6 3 to | 10 Hose joint - Me | 2 7 | 07 Thermostatic valve cover | Bolt Me | 2 10 | 10 Filler neck supporting Bolt Ms | 4 | 5 05 ll pump soew | M6 | 2 | 7 | o7 ill pump cover Bolt us 1 | 4 | oa Drain plug Bott M35 1 32 | 32 Carburetor joint Bolt Me 2 1o | 1.0 Carburetor joint and carburetor | Nut Me 2 1o | 1.0 Fuel pump - | M6 2 1o | 10 Exhaust pipe assembly | Nut | MB 2 | 2 | 20 Crankcase (let and right) | Bott | M6 9 to | 10 Drain bott Bot | Me 1 22 | 22 ll filler Bolt Mia 1 03 Crankcase cover (left) | Bolt Me " to | 10 Crankease filter cover - | M6 3 | o7 Grankcase cover protector | Bolt Me 2 7 | o7 Magnet cover - Me 10 10 | 10 81ENGINE Tightening Part to be tightened | Part name | Thread Qty torque Remarks sie Nm_| mkg | Cover (oil pump) | Bolt M6 2 2 | 12 -~q Timing check plug Plug Mie 1 8 | os ‘One way clutch - MB 3 30 | 30 gq Clutch housing Bolt M14 1 6 | 60 Grease stopper (Primary sheave) - Ma 4 3 | 03 Primary fixed sheave - m4 1 6 | 60 Clutch carrier assembly) = _ | M36. 1 90 | 90 Stator - Ms 3 7 | 07 -a Pick up coil _ Ms 2 7 | o7 gq Starter motor Bolt Me 2 10 | 10 Thermo switch - M16 1 23 | 23 Thermo unit - Pte 1 8 | 08 8283 ENGINE ENGINE VALVE CLEARANCE ADJUSTMENT NOTE: Valve clearance adjustment should be made with the engine cool, at room temperature. When the valve clearance is to be measured or adjusted, the piston must be at Top Dead Center (T.D.C.) on the éompression stroke. 1.Remove: *Side panels ‘Tail cover Fuel tank 2.Remove: “Crankcase fier cover) *Crankcase filter cover seal *Crankcase filter element) 3.Remove: -Spark plug Valve cover (intake side) -Valve cover (exhaust side) 4.Remove: Timing check plug 5.Measure: Valve clearance Out of specification —> Adjust. Valve clearance (cold): Intake valve 0.08-0.12mm Exhaust valve 0.16-0.20mm Measurement steps: “Rotate the primary fixed sheave counter ~ clockwise to align the slit @ on the rotor with the stationary pointer (b) on the crankcover 1 when the piston is Top Dead Center (TDC). “Measure the valve clearance by using a feeler gauge. Out of specification —» Adjust clearance.ENGINE 6. Adjust Valve clearance Adjustment steps: + Loosen the locknut ©. + Tum the adjuster @ in or out with the valve adjusting tool ® until specified clearance is obtained. Turning in —-Valve clearance is decreased Turning out —Valve clearance increased. + Hold the adjuster to prevent it from moving and tighten the locknut. [ean] + Measure the valve calearance. + If the clearance is incorrect, repeat above steps Until specified clearance is obtained. 7. Install: + Valve cover (intake side) () [}ONen(1.0mn-kg)| + Outing @ 8. Install: + Valve cover (exhaust side) [oNe-0m-kg) + O-ring + Spark plug 18Nen(1.8m-kg) Timing check window screw. + Crankcase filter clemetnt + Crankcase filter cover seal + Crankcase filter cover TNM(O-7M-Kg) IDLING SPEED ADJUSTMENT 4. Start the engine and let it warm up for several minutes. 2. Attach: + Inductive tachometer to the spark plug lead.85 ENGINE 3. Check: + Engine idling speed ut of specification — Adjust. oS Engine idling speed: 1,450-1,550 r/min 4, Adjust: + Engine idle speed Adjustment steps: + Turn the pilot screw @ until it is lightly seated. + Turn the pilot screw out by the specified umber of turns, BS Pilot screw: & turn out + Tum the throttle stop screw @ in or out Until the specified idling speed is obtained, 5. Adjust: Throttle cable free play Refer to "THROTTLE CABLE FREE PLAY ADJUSTMENT" section.ENGINE SPARK PLUG INSPECTION 1. Remove: + Spark plug cap + Spark plug Before removing the spark plug, use compressed air to blow away any dirt accumulated in the spark plug wells to prevent it from falling into the cylinder. 1. Check: Spark plug type Incorrect —> Replace. OS Standard spark plug: DR8EA (NGK) 2. Inspect: + Electrode D Wear/damage — Replace. + Insulator @ Abnormal color —> Replace. Normal color is a medium -to-light tan color. 2. Clean: + Spark plug (with spark plug cleaner or wire brush) 3. Measure: + Spark plug gap ® (with a wire gauge) Out of specification —» Adjust gap.ENGINE 87 ‘S Sprak plug gap: 0.6-0.7 mm 6. Install: + Spark plug 1@Nm(1.8m-kg) NOTI Before installing a spark plug, clean the gasket surface and plug surface.ENGINE COMPRESSION PRESSURE MEASUREMENT NOTE: Insufficient compression pressure will result in performance loss. 1, Remove: Relate to ATV. 2. Check + Valve clearance Out of specification > Adjust. Refer to "VALVE CLEARANCE ADJUSTMENT" section. 3. Start the engine and let it warm up for several minutes. 4, Tum off the engine. 5. Remove: + Spark plug Before removing the spark plug, use compressed air to blow away any dirt accumulated in the spark plug well to Prevent it from falling into the cylinder 6. Attach: + Compression gauge D 7. Measure + Compression pressure If it exceeds the maximum pressure allowed — Inspect the cylinder head, valve surfaces and piston crown for carbon deposits. If it is below the minimum pressure —> ‘Squirt a few drops of oil into the affected cylinder and measure again. Follow the table below.ENGINE 89 Compression pressure (With oil applied into cylinder) Reading | Diagnosis Higher than ope th wom or damaged pistons Possible defective ring(s), valves, cylinder head gasket or piston —» Repair Same as without oil Compression pressure (at sea level): Standard: 1,400 kPa (14Kg/om#,14 bar) Minimum: 1,120 KPa (11.2 kg/om?,11.2 bar) Measurement steps: Crank the engine with the throttle wide ‘open until reading on the compression gauge stabilizes. AWARNING Before cranking the engine, ground all spark plug leads to prevent sparking. 8. Install: + Spark plug [1aNin(t-am-ka) 9. Install: ENGINE OIL LEVEL INSPECTION 1. Relate to ATV 2, Start the engine and let it warm up for a few minutes. 3. Tum off the engine. 4, Inspect: (Do not thread dipstick in) + Engine oll level il level should be between maximum. © and minimum @) marks. Oil level is below the ‘Add oil up to the proper lever.ENGINE Tem. 20-10 0 10 20 90 40 peppy yy 101730 HOW/0 2OW/40 20W750, RECOMMENDED ENGINE OIL Refer to the chart for selection of the oils suited to the atomosperic temperature. API STANDARI API SG or higher grade + Do not put in any chemical additives or use oils with a grade of CD or higher. + Be sure not to use oils labeled "ENERGY CONSERVING I” or higher. En- gine oil also lubricates the clutch and ad- ditives could cause clutch slippage. + Be sure no foreign material enters the crankcase. 5. Start the engine and let it warm up for a few minutes. 6. Turn off the engine. NOTE: Wait a few minutes until the oil settles before inspecting the oil level. ENGINE OIL REPLACEMENT 1. Start the engine and let it warm up for several minutes. 2. Tum off the engine and place an oil pan Under the engine. 3. Remove: + Oil filer plug + Drain plug D [S@Nmn(3.2m-kg)] + Compression spring @ + Oil strainer @ + O-ring Drain the crankcase of its oil. 4. Install: -orng gd [EY + Compression spring 2) + Oil strainer @) + Drain plug ® + Oil filer plug NOTE:. Check the drain plug O-ring. If damaged, replace it with a new one.o ENGINE 5. Fill: *Crankcase vp il quantity 1.4L 6. Check: + Engine oil level Refer to. "ENGINE OIL LEVEL INSPECTION" section. ENGINE OIL PRESSURE INSPECTION 1, Relate to ATV 2. Inspect: + Oil pressure Inspection steps: + Slightly loosen the oil check bolt ©. + Start the engine and keep it idling until the oil begins to seep from the oil check bolt If no oll comes out after one minute, turn the engine off so it will not seize. + Check oil passages and oll pump for damage or leakage.ENGINE 92 -Start the engine after solving the problem(s), and recheck the oil pressure. Add soft water (tap water) up to the proper level. CAUTION: Hard water or salt water is harmful to engine parts. Use only distilled water if soft water is not available. if you use tap water, make sure it is soft water. 3.Start the engine and let it warm up for several minutes. 4.Turn off the engine and inspect the coolant level again. NOTE: Wait a few minutes until the coolant settles before inspecting the coolant level.ENGINE 95 COOLANT REPLACEMENT 1.Remove: Relate to ATV 2.Remove: +Hose @ (reservoit Drain the reservoi 3.Remove: -Drain bolt D -Radiator cap Open the front trunk, remove the cover, slowly loosen to remove the radiator cap and drain the coolant. Do not remove the radiator cap when the engine and radiator are hot. Scalding hot fluid and steam may be blown out under Pressure, which could cause serious injury. When the engine has cooled, open the radiator cap as follows: Place a thick rag or a towel over the radiator cap. Slowly rotate the cap counterclockwise toward the detent. This allows any residual pressure to escape. When the hissing sound has stopped, press down on the cap while turning counterclockwise and remove it. tank) tank of its coolant. NOTI “Remove the radiator cap after removing the drain bolt. 4.Clean: Radiator Fill soft water into the filer neck support (reservoir tank).ENGINE 5.Install: “Gasket © A “Drain bolt @ [Ne [tonm(t.om-ka) 6.Loosen: +Hose D 7.Connect -Hose (reservoir tank) Fill: “Radiator (to specified level D) Fill the coolant slowly, until the coolant ‘comes out from the head hose. +Reservoir tank (to maximum level @) Recommended coolant: High quality ethylene glycol anti-freeze. containing corrosion inhibitors for aluminium engine. Mixed ratio: 50%/50% Total amount: ret leservoir tank capacity: 0.35L, Paci Handling notes for coolant: Coolant is potentially harmful and should be handled with special care.ENGINE 7 “If coolant splashes in your eyes: thoroughly wash your eyes with water and consult a doctor. “If coolant splashes on your clothes: quickly wash it away with water and then with soap and water. -If coolant is swallowed: vomit immediately and see a physician. -Hard water or salt water is harmful to engine parts. Use only distilled water if soft water is not available. -If you use tap water, make sure it is soft water. -Do not use water containing impurities or oil. “Take care that no coolant splashes onto painted surefaces. If it does, wash them immediately with water. -Do not mix different types of ethylene glycol inhibitors for aluminium engines. 9.Tighten: -Hose Fill the coolant slowly to the specified level 10.Install: “Radiator cap 11.Start the engine and fet it warm up for several minutes. 12,Stop the engine and inspect the level. Refer to "COOLANT LEVEL INSPECTION’ section. NOT! Wait a few minutes until the coolant settles before inspecting the coolant level. 13.Install: RELATE TO ATVENGINE CYLINDER HEAD Order | Job name/Part name Qty Remarks Cylinder head removal Drain the coolant. Remove the parts in order. Side panel Refer to the "COVER AND Footrest board PANELS" section. Fuel tank Carburetor 1 Thermo unit lead J Refer to "CARBURETOR" 2 | Plug cap 1 section. 3 Crankcase breather hose 2 4 Outlet hose (cylinder head) | 1 5 Breather hose (crankcase) } 1 6 4 Carburetor joint 1 7 Joint 1 8 O-ring 2 98ENGINE Order | Job name/Part name Qty Remarks 9 | Crankcase filter cover/seal/element| 1/1/1 10 Plug/O-ring 1A 1" Cam sprocket cover/O-ring Ww 12 Valve cover (intake side)/O-ring Ww 13 Valve cover (exhaust side)/O-ring | 1/1 14 Timing chain tensioner assembly 1 15 Timing chain tensioner gasket 1 16 Breather plate 1 Refer to "CYLINDER HEAD 17 Cam sprocket/Timing chain Ww REMOVAL AND 18 Cylinder head 1 INSTALLATION’ section. 19 Cylinder head gasket 1 20 Dowel pin 2 | Reverse the removal procedure for installation. 99ENGINE 100 CYLINDER HEAD REMOVAL 1.Align: + "I" mark ® on the rotor (with stationary pointer @ on the crankcase cover) NOTE: Tur the primary sheave counterclockwise with ‘a wrench and align the "I" mark © with the cylinder head match mark @ when the piston is at TDC on the compression stroke. 2. Loosen: + Bolt 38. Remove: + Timing chain tensioner assembly + Timing chain tensioner gasket 4, Remove: + Breather plate @ + Cam sprocket 3) + Timing chain @ NOTE: + Fasten a safety wire to the timing chain to prevent it from falling into the crankcase. + Remove the bolt D while holding the rotor mounting bolt with a wrench. 5. Remove: + Cylinder. head NOTE: + Loosen the nuts in their proper loosening sequence. + Start by loosening-each nut 1/2 tum until all are loose, CYLINDER HEAD INSPECTION: 1. Eliminate: + Carbon deposits (from combustion chambers) Use a rounded scraper. NOTE: Do not use @ sharp instrument to avoid damaging or scratching: + Spark plug threads + Valve seatsENGINE 2. Inspect: + Cylinder head : Scratches/damage —> Replace. 3. Measure: + Cylinder head warpage Out of secification —» Resurface. Cylinder head warpage: X Less than 0.03 mm Warpage measurement and resurfacement steps: + Place a straight edge and a feeler gauge across the cylinder head + Measure the warpage. If the warpage is out of specification, resurface the cylinder head. + Place a 400.600 grit wet abrasive pape on the surface plate, and resurface the head using a figure eight sanding pattern. NOTE: Rotate the cylinder head several times for an even resurfacement. CYIINDER HEAD INSTALLATION 1. Install: + Gasket (cylinder head) + Dowel pins + Cylinder head NOTE: * Apply engine oil onto the nut threads. ighten the nuts in a crisscross pattern. 2. Tighten: Nuts (cylinder rea + Bolts (cylinder) [22Nm(2.2m-kg) 10Nm(1.0m-kg)ENGINE 102 3. Install + Cam sprocket D + Timing chain @ Installing steps: + Tum the primary sheave counterclockwise until the TDC mark @ matches the stationary pointer @. + Align the "I!" mark © on the cam sprocket with the stationary pointer @ on the cylinder head. + Fit the timing chain onto the cam sprocket and install the cam sprocket on the camshaft. NOTE: + When installing the cam sprocket, keep the timing chain as tense as possible on the ‘exhaust side, + Align the match mark @ on the cam sprocket with the stationary pointer @ on the cylinder head. + Align the pin on the camshaft with the slot in the cam sprocket. Do not tum the crankshaft during of the camshaft. Damage or improper valve timing will result. + While holding the camshaft, temporarily tighten the bolts, Remove the safety wire from the timing chain, 4. Install: + Breather plate D + Plane washer @