That oil you put in. Does it say resource conserving or energy conserving on the back of the bottle in the little circle? If so change the oil to one that doesn't have that and see if it fixes your problem. You need to drain the oil anyway to get to the wet clutch.2008 660 1200miles. synthetic oil
wet clutch not functioning after bike has been ridden for a while. When tested wet clutch, it passed - per service manual. Will open engine, pull clutch and inspect.
That test only verifies that the one way bearing is working properly. Slipping while riding is an indicator, tear down is the only way to check the WC.pulled belt and clutch, service manual gave procedure for checking centrifuge clutch in engine. It checked out. free spin on counter clockwise and locked on clockwise. do not know if that guarantees it is good, but it was in the service manual. Any other ideas befor I put it back together. everything else checks out.
That oil you put in. Does it say resource conserving or energy conserving on the back of the bottle in the little circle? If so change the oil to one that doesn't have that and see if it fixes your problem. You need to drain the oil anyway to get to the wet clutch.
@Grizzcrazy might be onto something. Be totally positive that the oil, whether it's synthetic or not, is clearly rated that it is wet clutch compatible. Plenty of info and opinions on what's best, but the two most popular seem to be the Rototella T, wet clutch compatible, and the Amsoil synthetic. It might as simple as an oil change.
