Hey guys, kinda being puzzled on what’s going on with my motor. The other day I was riding down the road and was cruising about 45mph then the quad power went flat, still running but no power. About 10 seconds after going flat out picked back up had plenty of power but unfortunately had a nasty tick in the motor. ? had plenty of oil, 93 octane does have high hrs about 600 and 1600 miles.
I tore the top end apart and found a blue mark on the crank and a scored piston. I just want to know if these 660 cranks from factory have the blue mark on the crank and maybe get some opinions on what might have happened.
Thanks guys.
