Beast

Image Old School Garage


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Soviet Sports-bike Girl

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Black Zombie

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Noel's Stunt Bike

Photo Noel Feeney

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Drift Racer

Thibault demonstrates how to build a CBR600 drift racer on the cheap...

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Reprobates

I was supposed to go stunting today with Noel and Evan. But there were complications this morning and I had to cry off.

I'm a bit bummed about that now...

All pics by Evan and Noel.


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12 O'Clock Bar

Noel dropped out on Saturday with the sub-frame from his stunt-bike. The previous owner had cut the 12 O'clock bar off the bike because the corners were catching when he was doing circles.

Circles aren't really an issue for Noel at this point and he feels the 12 O'clock bar will be useful. So we welded it back on...

The last time the bike was in the workshop - No 12 O'clock bar.

Before doing anything else, we chamfered the corners of the 12 O'Clock bar to reduce the chances or the bar catching during circles. The porous welds were re-enforced after the 12 O'clock bar was joined to the sub-frame.

The edges of the sub-frame were also chamfered to allow for better weld penetration.

The two pieces clamped together for tack welding.

The finished item. Rough as a bear's arse, but plenty strong.

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Stunt Bike

Noel dropped out to the workshop today with his CBR 600 stunt bike. It wasn't running very well. It started easily and ticked-over fine but there was a massive flat-spot in the mid-range and it wouldn't rev out.

My first guess was something amiss with the airbox and my second guess was an electrical problem. The process of removing the airbox to get at the coils didn't turn up anything suspicious. 

However, testing the High Tension leads with a strobe light revealed that the sparks were breaking down under load.* 

Anyway, trimming the ends of the HT leads and re-installing them solved the problem. 

Simples...

Using the strobe gun to test if the spark plugs are sparking under load. 

We removed a few spiky bits to make stunting the thing a little safer.

 

It's running much happier. I think I might want a CBR 600...

*This isn't actually what a strobe gun is for - it's intended use is for checking the ignition timing.But a side effect is that it tells you if a spark plug is sparking. Sometimes you'll encounter a machine that will produce a big fat spark with the spark plug out of the engine, and not produce any spark with the plug re-installed. This can be a headwrecker, cos you assume the big-fat-spark-producing spark plug is still firing and go and pull the carbs apart or something...

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