Blowing oil out the vent tube

[robert0762]

When ever I run wide open in fifth and sixth gear I blow a bunch of oil out the vent tube. Any idea why it is doing this?

[wesw]

crank seals or water pump seal

[robert0762]

I just went back out to fuck wit my bike. Checked coolant and I am full so that means the water pump

seal should be good right???? So i go forhort ride and find out my rear shock is blown.

Ne way cant ride too hard like that . I spin around get on it a lil and

blow all kinds of oil out the overflow.

I pulled the stick when I got to my house and was noting on it. i just topped it off

before leaving. So this is def gonna be the crank seals ...correct?????????

 

[J-Madd]

I think a bad crank seal would mainly just suck oil, not pressurize the crankcase. I could be wrong.

 

 

I'm having this problem on my 16 mil Cheetah, but I can't pressure test it because air flows freely around the plates on top of the powervalve assemblies.