"You may be able to find a clutch from a JICA piston port motor. They were in use until KF3 was introduced for Juniors.
It will need a longer crank but it should be possible to find a JICA crank half which will fit. "
"30mm has a wider window than the 32mm on a low grip surface a 32 will be better but depending on the circuit and type of meeting being run the 30mm will have the advantage if the grip goes down. I run a 30mm and scale in at 200 kgs. I have no issue…"
I'm all the way from Luxembourg.
Yeah my findings also show that it will not be cheap.
Whay do you say I will not find a engine clutch for motor? Is it to old or is it because the axle is so short?
"Which state are you in Alex? It won't be cheap and I doubt you will even find an engine clutch to suit that motor so the axle type is your best bet. Would want a good one as the lower end types would not handle the hp... You would need to…"