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Everything Dirt Bike
Make / Model Specific
Yamaha
1993 Yamaha WR500 Teardown/Overhaul
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<blockquote data-quote="cleonard" data-source="post: 175530" data-attributes="member: 21"><p>The current crop of 4T's have these little slipper pistons. They don't have the life of the pistons of old. I put about 40k miles on my xr600 all on the same piston. Probably 1000 hours or more. I did have to re ring it, but it still measured within limits and it ran for several more years.</p><p></p><p>I hope that my Beta's piston makes it to 200 hours. That is a lot for a slipper type piston design. Run a piston too long and they have a way of breaking a chunk off and doing catastrophic damage.</p></blockquote><p></p>
[QUOTE="cleonard, post: 175530, member: 21"] The current crop of 4T's have these little slipper pistons. They don't have the life of the pistons of old. I put about 40k miles on my xr600 all on the same piston. Probably 1000 hours or more. I did have to re ring it, but it still measured within limits and it ran for several more years. I hope that my Beta's piston makes it to 200 hours. That is a lot for a slipper type piston design. Run a piston too long and they have a way of breaking a chunk off and doing catastrophic damage. [/QUOTE]
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Everything Dirt Bike
Make / Model Specific
Yamaha
1993 Yamaha WR500 Teardown/Overhaul
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