Originally Posted by Trbig67
Problem... I rode the bike one day and everything was fine. Next day when I started it, it was puking oil out everywhere. I found out that the seal around the shaft the front sprocket is on has popped out. I tapped it back in place.. seemed like a nice tight seal, started it up and watched it get slowly pushed right back out again and oil dump all over. Why is the crankcase building up this much pressure? Plugged hose/vent somewhere? I don't know where the vent is on this thing.
This is not unknown. It happened to me on a cold start so I made a mechanical retainer. I ended up making and selling a stack more. I don't do them anymore, but Procycle does. Get one, bolt it on and problem fixed. And for others out there, do it before its a problem as insurance, because when it happens it really is a PITA.
My story starts at #197 here:
There is more over on DRR: