Dead WR426... low comp.

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  • Fingol

Posted March 20, 2004 - 02:50 AM


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.



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