Breather full of oil

[Mike Mac]

Probably also need to mention, excessive blow by, could also cause this situation.

[Tcoe13]

Originally Posted by Mike Mac

Probably also need to mention, excessive blow by, could also cause this situation.

What do you mean by blow by? dont know my terms, is it like the pump is doing too much pumping? i bypassed my gov.

[Mike Mac]

Its when compression leaks past the rings and goes into the crank case, causing an over amount of crank case pressure, pushing oil and air out of any orifice in the engine. The last 2 causes I've mentioned, are not that common. The float valve in the carb. being the usual cause of gas in oil. And over filling, the most common cause for oil in breather.

Bypassing the gov. You should read up on this sub. on this sight. You can blow up the motor running it for extended periods of time at high RPM.

You all should read the whole yamaha site! You will learn tons of info from speed secrets to maint. Start at the back and read to present. Much better than just asking questions. Best thing I ever did!
I bet all your questions will be answered in the first 2 hours of reading.

And, Yes, these guys on here are that GOOD!

[Tcoe13]

Originally Posted by Mike Mac

Its when compression leaks past the rings and goes into the crank case, causing an over amount of crank case pressure, pushing oil and air out of any orifice in the engine. The last 2 causes I've mentioned, are not that common. The float valve in the carb. being the usual cause of gas in oil. And over filling, the most common cause for oil in breather.

Bypassing the gov. You should read up on this sub. on this sight. You can blow up the motor running it for extended periods of time at high RPM.

You all should read the whole yamaha site! You will learn tons of info from speed secrets to maint. Start at the back and read to present. Much better than just asking questions. Best thing I ever did!
I bet all your questions will be answered in the first 2 hours of reading.

And, Yes, these guys on here are that GOOD!

I know about the gov thing. i got a ziptie pull thing connected to the throttle is all. i try not to use it too much, only for short times on road, climbing hills and mud

[Mike Mac]