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Everything Dirt Bike
Make / Model Specific
Yamaha
The 1999 YZ250
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<blockquote data-quote="Trfsrfr" data-source="post: 209860" data-attributes="member: 3959"><p>I'm not sure really. When it hit the power it went, but still sputtered a bit getting up to it, but then it did that before too.</p><p></p><p>Plug is an NGK BR8ES.</p><p></p><p>What do you suppose it that silvery stuff on the plug?</p><p>Is that the top of my piston?</p><p>Makes me nervous to run it again. Makes me wonder about the timing too. I dont have a dial indicator to check it though. Maybe I'll see if Harbor Freight has one...</p></blockquote><p></p>
[QUOTE="Trfsrfr, post: 209860, member: 3959"] I'm not sure really. When it hit the power it went, but still sputtered a bit getting up to it, but then it did that before too. Plug is an NGK BR8ES. What do you suppose it that silvery stuff on the plug? Is that the top of my piston? Makes me nervous to run it again. Makes me wonder about the timing too. I dont have a dial indicator to check it though. Maybe I'll see if Harbor Freight has one... [/QUOTE]
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Everything Dirt Bike
Make / Model Specific
Yamaha
The 1999 YZ250
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