berto wrote:
Interesting! How did you solve this?
You can't really move the carb. So was it a matter of getting the engine to run cooler with richer mixture? Or something else?
There were a couple of problems with this one. The carb was worn and so needed a new slide, float and float valve. It would have been nice to just replace the carb but the bike was beyond obsolete and parts didn't exist. The base gasket/insulator plate for the carb had hardened with age and begun to transmit heat rather that keeping it at bay. And finally, some knucklehead, that would be me, had tuned the poor engine to a razors edge and it really needed some better carburation as a result.
The final fix was to scrap the 26mm Jikov the engine came with and fit a more modern 28mm Mikuni for which parts were available allowing me to jet the silly thing so the engine could get the nice rich mixture it wanted.
The result was a nice torquey motor which pulled like a freight train and went like proper stink.
The final bike, after an extensive weight reduction program, proceeded to scared the shit out of me for about two years before i shelved it so it wouldn't kill me... lovely while it lasted though, i sure do miss street legal two stroke cafe racers!