Originally posted by perrytime
timing light on running engine shows 25 deg BTDC, spec is 32.
Originally posted by mx416
I have a 2003 YZ125. It is a stock bike and I went through 3 pistons and 2 cylinders and heads this summer because of detonation. I'm not too happy with Yamaha right now. The mechanic didn't figure this out until this fall.
Originally posted by mx416
I have a 2003 YZ125. It is a stock bike and I went through 3 pistons and 2 cylinders and heads this summer because of detonation. I'm not too happy with Yamaha right now.
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