Hey guys! I got a problem with my 01 YZ250
I flooded the bike badly during my last ride a day ago. Fell with the bike in a 3 foot deep pond. I drained the carburator, took out the spark plug to drain the engine, put a new spark plug, but it still wouldn't start. The bike was towed out of the wood. I tried to bump start it whilst being towed, the engine had compression but seems like it would not make fire. I tried to crank it, sometimes the bike would have no compression, sometimes it would be normal. I'm kind of puzzled here...
Today, I began taking it apart. My exhaust pipe was full of water, like nearly half a gallon. I checked through my exhaust port, ther is water on the cylinder walls, the piston/rings look OK, there are no apparent scratches on the cylinder wall. I can hear water in the engine case when I'm against the exhaust port and I manually crank the bike.
So here are my questions:
1- How do you guys drain an engine case? I thought of taking out the carburator and flipping the bike upside down with the piston at top dead center to evacuate the water through the intake.
2 - How do you deal with engine flooding with water? How do you make sure the engine is dry and won't rust?
The engine ran less than 5 hours since a complete top end rebuild (OEM everything, cylinder, piston, gaskets...) so I'd really like to save it from the flooding :(