I would like to check the compression on my YZ125 and have never done it before. I read that I need to keep the throttle wide open when performing the check. Do I need to have the exhaust in place?
The Clymer manual tells me that I should be getting 100 to 125 psi. I can get up to 190 if I keep kicking, but I don't know if I should be kicking the bike over multiple times or just once when checking compression.
Basically, what is the step by step procedure. My ultimate goal is to check if I need a new top end.
Thanks for your time
The Clymer manual tells me that I should be getting 100 to 125 psi. I can get up to 190 if I keep kicking, but I don't know if I should be kicking the bike over multiple times or just once when checking compression.
Basically, what is the step by step procedure. My ultimate goal is to check if I need a new top end.
Thanks for your time