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Everything Dirt Bike
Make / Model Specific
Yamaha
Piston sizes?
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<blockquote data-quote="ossagp" data-source="post: 213966" data-attributes="member: 1650"><p>The barrel should be marked as to what it left the factory at, it if is like the yz line. MFR's have been doing this since the 70's that I know of (motorcycles, as auto and hd equipment seems to have done that since time). You could start there. If it is an iron lined cylinder I would just buy the first oversize over what is in it and have the cylinder bored to fit. Small two strokes are hard to mess up bad enough (for anyone who can read) to spend the money at a shop, IMO.</p></blockquote><p></p>
[QUOTE="ossagp, post: 213966, member: 1650"] The barrel should be marked as to what it left the factory at, it if is like the yz line. MFR's have been doing this since the 70's that I know of (motorcycles, as auto and hd equipment seems to have done that since time). You could start there. If it is an iron lined cylinder I would just buy the first oversize over what is in it and have the cylinder bored to fit. Small two strokes are hard to mess up bad enough (for anyone who can read) to spend the money at a shop, IMO. [/QUOTE]
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Everything Dirt Bike
Make / Model Specific
Yamaha
Piston sizes?
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