clocker

As I understand it the two chambers have no connection, but if they do and it continues to spew cankcase oil I'll be sure to check the rings and bore, thanks.

Thanks Bob. Got it on the oil level.

Hi all. This bike is a 1992 YZ80D and it blows crank case oil out of a bypass hose when it's under load. Anyone hazard a guess as to what the fix might be before I start taking things apart? I've never had one of these apart, but will have to shortly if my daughter wants to keep riding this thing. I have an owners service manual, but it lacks a diagram that might reveal how pressure is building in the crank case under load to blow out oil. It's getting worse so I'll have to do something about it this winter to have it ready for spring. Any insight people here might have to offer would be welcome. Ian Edit - Crank case... not crack.. save me!