How much compression?

[rob91]

Just wondering how much compression my stock bike is suppose to have?

it had 75psi and i just put a fresh set of rings in it now it has 85psi is this right?

[Larry's Shee]

Tester must have same length threads as spark plug. Fuel off , WOT, kick till guage stops moving . Warm engine will give higher reading. If still in doubt ,try another (better) tester.

Edited August 5, 2010 by Larry's Shee

[sleeper06]

130-140 static,something is -up

[Paul M]

its gunna take a couple 2-3 heat cycles to get the rings seated good ! like the other guy said , hold the throttle wide open and keep kicking until the gauge stops moving .