Hard to see that grove but its there.
I have to do something about it.....
Ran a ridge this afternoon.
the belt has no ridge anymore since it spent more time between the sheaves than riding on top.
Maybe I need to look at some sort of adjustment to the jack shaft that lets me increase the C to C as the belt wears.....
Brass bushing jambed up in the moving sheave.
More troubles I need to adress.
4400 is not that impressive.
A basic stock clone can do near 5000 for short sprints.
http://www.youtube.com/watch?v=EqYou...0&feature=plcp
This engine was known to reach 5000 rpm now and then even with a governer
Guess I should mention some details on the engine.
Tillotson 7/8 venturi carb ( stock is 5/8 )
ZM4 flat top piston.
ARC billet rod.
GXV 160 aluminum mower flywheel.
Can with a little more lift and durration.
Ported 14cc head, complete aftermarket valve train.
Header .880 ID 20 inches long.
Now just because you have power on tap does not mean you need to use it all the time.
Most of these modifications were made to ensure the engine would be strong and reliable under all conditions. All the weak points have been adressed.
Hmm rivet contact eh?
How would I check that?
Any sugestions?