Honda Xr 80r smoking

[lil indian 22]

I've talked about this to a lot of people and it doesn't make sense for the rings to go bad and still have compression. When i was doing jumps at my friends house, it suddenly started smoking. I think it's the vent hose. It was called positive; crank maybe; valve
or something like that. Where is the hose to release the pressure from the crank case?

 

[minibikedude]

My XR75 oil ring went out on it and It would started on the first or second kick cold every time. but smoked a lot when running, It looked like a two stroke. Until you take it Apart and see were the problem is, your just shooting in the dark!

 

[lil indian 22]

yeah, you're right minibikedude