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Re: 2001 yamaha raptor will not start and oil comes out...
Your float valve in your carb is stuck open is your oil milky or smell like gas? if not your engine vent is clogged making your oil build up let me know if your oil is milky or smells like gas and i will walk u through fixing it
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Hi, have you checked the compression, usually when they turn faster than normal (motor that is) than it is not a good sign, if compression is ok, maybe your valves are sticking which would cause it to turn faster, try changing to a good quality oil!!!
It is a pretty big job for a weekend mechanic. You will need some special tools > Impact driver, torque wrench, expanding 'C' ring pliers, case splitter and flywheel puller. The entire engine, top end and bottom end must be torn down. Don't try it without the manual. The clicking noise is probably a broken tooth on a gear. ALWAYS replace gears in sets, ALWAYS. The grinding is most likely a bad bearing.
Sounds like the carb has over flowed and filled the crankcase with gas. You will need to drain the oil, and re-fill it with new oil at the proper amount. Also replace the oil filter. Clean the air filter and replace the spark plug. Clean the carb, making sure the float and float needle are functioning properly. That should fix you up! RSRBOB
Just a hunch, had this happen to a bike of mine years ago, could be the piston rings are gettting ready to go(wore down). What happens is when the quad is cold the rings expand tight into the cylinder walls allowing it to get full compression and run ok. When it heats up they shrink allowing the slightest amount of give which in turn will cause you problems similar to what your describing.