Clutch issues ...
The Clutch will be replaced with a TAV.
Its hard to control this clutch in my application. I had to try it tho.
In a drag racing bike being able to feather it out and let it lock when you want it to would be the cats ass. It locks up hard, at least on my 9hp motor.
Problems I had otherwise ... (sprockets were aligned with care so that was not an issue)
The chain was chewing the sprockets (#35 & #40) badly.
#35 on top, #40 on the bottom.
My best assessment says master links should not be used, but I didn't see any thing on the 3D website about that.
First the #35 .... The regular links could have made those chew marks but the master link was definitely interfering.
Odd thing is the chew marks on the sprocket are every other link pin, not every pin like I would expect.
I measured the pin width and regular link pins were .520 while master link pins were .560
The #40 ... same issue as above but more pronounced as the chain is wider but the distance between the sprocket edge and the chewed area is about .210 on both the #35 & #40 sprockets. Add the wider master link and there is much interference.
When I moved from a 12 tooth jackshaft sprocket to a 24 tooth sprocket I ran into another problem, the chain was hitting the hex head that secures the guard to the motor.
This was causing the chain to get pushed twards the outside under load and popping the master link clip off and then the chain.
This might end up in my brothers hands as he is more likely than me to make a street racer ...
Kevin