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Dirt Bike Discussions By Brand
Yamaha MX & Off-Road Dirt Bikes
01 yz125 rebuild please help...
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[QUOTE="MikeT, post: 1308549, member: 21398"] You will see some discoloration and that is normal. Any grooves in the crank are not normal. I think if the burn marks are heat like (blueish and reddish) marks around the crank pivot, it just shows how hot that area got. I would then just watch my oil ratio and make sure you aren't running too lean. If the burn marks are black and sooty then I don't know why they are there.... [/QUOTE]
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Dirt Bike Discussions By Brand
Yamaha MX & Off-Road Dirt Bikes
01 yz125 rebuild please help...
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