06-30-2011, 05:39 AM
There's a few things to consider. If it has good compression at room temperature, your rings probably aren't bad, but there might be some scoring on the cylinder walls. I can think of 3 places the fuel could get into the case:
1. past the rings
2. through the intake valve guide
3. through the head gasket between the cylinder and cam chain.
I'd start by checking the carb to see if it's flooding the cylinder by removing it from the bike while keeping the fuel line hooked up. hold it the same way it sits on the motor and turn the petcock on to see if fuel starts dumping out of it before you adjust anything. If that IS your problem, then start adjusting... if not, then move onto other possibilities.
1. past the rings
2. through the intake valve guide
3. through the head gasket between the cylinder and cam chain.
I'd start by checking the carb to see if it's flooding the cylinder by removing it from the bike while keeping the fuel line hooked up. hold it the same way it sits on the motor and turn the petcock on to see if fuel starts dumping out of it before you adjust anything. If that IS your problem, then start adjusting... if not, then move onto other possibilities.