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Everything Dirt Bike
Make / Model Specific
Yamaha
1985 Yamaha YZ250
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<blockquote data-quote="ossagp" data-source="post: 202450" data-attributes="member: 1650"><p>Everyone is big on compression tests!!! If you have raw fuel in your cases and up into the pipe, that is where I would be directing my attention first. Since you have it all the way "top down" you might as well see if the tolerances are close enough for rings and piston or if it's time to bore that one. Fyi trying to save money on the rebore will probably be a waste. A new float needle, Seat, and setting it would probably have had you riding for awhile. The cardinal rule is that when you are trying to start or tune any bike and you need advice, give a really detailed description of the spark plug.</p></blockquote><p></p>
[QUOTE="ossagp, post: 202450, member: 1650"] Everyone is big on compression tests!!! If you have raw fuel in your cases and up into the pipe, that is where I would be directing my attention first. Since you have it all the way "top down" you might as well see if the tolerances are close enough for rings and piston or if it's time to bore that one. Fyi trying to save money on the rebore will probably be a waste. A new float needle, Seat, and setting it would probably have had you riding for awhile. The cardinal rule is that when you are trying to start or tune any bike and you need advice, give a really detailed description of the spark plug. [/QUOTE]
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Everything Dirt Bike
Make / Model Specific
Yamaha
1985 Yamaha YZ250
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