white smoke wr450
Posted June 11, 2013 - 03:00 PM
Posted June 11, 2013 - 06:42 PM
Valve lash and shim
Replace the pilot jet and air jet
Get a new air cleaner
Posted June 12, 2013 - 10:13 AM
As the rings age and loose their seal, combustion gasses will escape from the combustion chamber into the crankcase and cause a net outflow that's greater than normal. That can't be solved by any routine maintenance; only new rings will fix it, and there can be wear considerations with the cylinder and piston as well. The categorically accurate way to evaluate your next move is to have a leak down test run on the bike to check the condition of the rings, etc.