Optimal Stall speed?

C9H13NO3

Active Member
#1
I have a briggs 3.5 on a bike right now, it's nothing fancy.

All I've done is give it a quick port job, removed the gov, a straight pipe, and a free flowing air filter.

The bike was setup with #41 chain, but I changed that out to #35. The only problem is, all my clutches are setup for 3400+ rpm stall speed!

What rpm range would be best?
 

Motra

Active Member
#5
For best performance, clutch engagement should be about 200 to 300 RPM below the engine's peak torque curve. But you'd need a dyno to find that.
 
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