This goes out to all with 600RR's i just found out that my #3 piston was hitting my head because i spun a bearing i kept about 3.75 quarts of oil in the motor and i was wondering if anyone has had that problem or heard about it cause i thought the oil pickup was in the back soi thought it was fine i spoke to Theis at H.A.I Bikeshop and he said his motor is noisey and he said that Teach went through a couple of motors and i was wondering if it will happen again if i replace my motor and stunt with it again or if i shoud sell it and get something else