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Everything Dirt Bike
General Dirt Bike
Genuine Honda "B" Piston in "A" Cylinder - CR250
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<blockquote data-quote="JimYZ250" data-source="post: 181861" data-attributes="member: 2196"><p>I asked troypowersports why they sent me a B piston with an A cylinder and this is what they told me:</p><p></p><p>Hello,</p><p></p><p>"The cylinder and piston are OK to run together. Honda has been selling the A and B cylinders and piston based on availability, and have been mixing them for years now.</p><p></p><p>What we shipped is the only cylinder and piston Honda distributes now. The 2002-2004 CR250R uses a two ring piston, 2005 and later models use a single ring piston.</p><p></p><p>Rest assured that using A and B cylinder and piston are just fine. Let me know if you have any questions, or need anything else."</p><p></p><p>I was on the phone to Honda today and they told me the cylinder will wear out quicker with the B piston fitted to the A. I'm getting loads of different ideas its annoying. Whats the final thought guys? Go with it and throw the B in and hope for the best? Its good to know twin ring is supposed to last longer though.</p><p>thanks for advice <img src="https://www.dirtbikeaddicts.com/static/images/smilies/smile.gif" class="smilie" loading="lazy" alt=":)" title="Smile :)" data-shortname=":)" /></p></blockquote><p></p>
[QUOTE="JimYZ250, post: 181861, member: 2196"] I asked troypowersports why they sent me a B piston with an A cylinder and this is what they told me: Hello, "The cylinder and piston are OK to run together. Honda has been selling the A and B cylinders and piston based on availability, and have been mixing them for years now. What we shipped is the only cylinder and piston Honda distributes now. The 2002-2004 CR250R uses a two ring piston, 2005 and later models use a single ring piston. Rest assured that using A and B cylinder and piston are just fine. Let me know if you have any questions, or need anything else." I was on the phone to Honda today and they told me the cylinder will wear out quicker with the B piston fitted to the A. I'm getting loads of different ideas its annoying. Whats the final thought guys? Go with it and throw the B in and hope for the best? Its good to know twin ring is supposed to last longer though. thanks for advice :) [/QUOTE]
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Everything Dirt Bike
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Genuine Honda "B" Piston in "A" Cylinder - CR250
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