Dead WR426... low comp.

Can you help me out here. I've got some serious problems with my WR426-01. Used for Enduro for about 120h without

any troubles until now. Since I've got some bad starting

problems (the carb was clogged) a few serious baaangs and

booms seems to have killed him. Sometímes I get VERY low

compression and sometimes it's almost OK. I've heard that

the piston can tilt if it's worn, can this cause the problems ? I've also have a slightly leaking valve on the

intake. I've tried to lap it without success. Seems like

they've used some space material for the valve seats and

valves :) As far as I can visually inspect the piston looks

OK but I've no measuring gear.

/Håkan

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!


Register a new account

Sign in

Already have an account? Sign in here.


Sign In Now