JohnnyB

Back in business. Runs great again. Thanks for everyone's comments!

Drained the oil out of crankcase and it rolls over now. Just need to clean the carb and she if she fires up. I'll provide an update within the next week.

Good thoughts. I just picked the quad up and drained crankcase. I'll replace oil pump and try again. Thanks for everyone's help!

My thought was it's so full, it's sucking it back up in the cylinder. I don't have fuel or oil line connected, yet oil is still filling the cylinder to the point it won't turn over because of high compression. Oil also continues to leak out of exhaust port. After sitting a couple years, all the 2 cycle oil was gone from tank. It filled the entire carburator including bowl. I'm assuming the rest drained into crankcase. I just don't see any fill, drain or level ports to confirm.

First off, Thanks for the detailed reply. The fluid I drained from the carb and seapping out the exhaust port is definitely straight 2 cycle oil. It's blue and thick. It will only crank over a few times before it "locks up". I pull the spark plug and it's dripping with oil. I turn it over without plug until no oil comes out, put the plug back in and the same thing happens. I have fuel off and line from oil pump disconnected. The oil tank is also empty after sitting which is why I thought it may have drained into carb and crankcase. My thought was to just premix the gas as you mentioned was done prior to oil tanks. I just bought the manual(I'll have print as its hard to read PDF on my phone), but not seeing anything about filling or draining crankcase. There is oil about an inch from the bottom of cylinder once removed. I just don't understand where else oil filling the cylinder could be coming from after I drained carb and rolled it over without plug have fuel and oil injector disconnect. I'll pull the cylinder off and take a photo.

Greetings, Have a 88 LT80 that been sitting for a couple years. Bought a new piston, cylinder and head. Installed these, rolled it over and it quickly locks up. Took carb apart. It was full of what appears to be 2 cycle oil. Cleaned it, but keeps locking up and 2 cycle oil continues to seap from exhaust port. When i installed new cylinder, I noticed crankcase was full of oil. I'm now wondering if that oil is what's getting sucked up into cylinder. Should there be no oil in crankcase? If that the case, how is crank and rod lubricated? Sorry, never worked on a 2 stroke. Thanks!