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<blockquote data-quote="SRAD97750" data-source="post: 222404" data-attributes="member: 425">To be honest, we only have interest in helping others who come here, but your initial&nbsp; approach is imperative. You'll learn how important that is in life.When you say &quot;blown piston,&quot; does that mean the piston rings are out of spec and the compression is low?Or is the piston worn as well and caused some cylinder scratching?The measurements of the installed piston/cylinder are important because there are 4 different pistons available in .50mm increments, 3 of which are oversized. This cylinder could already be an oversize, which means the new piston, even if you don't have the need to bore/hone could need to be oversize.Get back to me, and we'll set you up with not only the knowledge, but probably links to the cheapest option available. -BIG DAN<img src="https://www.dirtbikeaddicts.com/static/images/smilies/thumb.gif"&nbsp; class="smilie" loading="lazy" alt=":thumb:" title="Thumb&nbsp; &nbsp; :thumb:" data-shortname=":thumb:" /></blockquote>

[QUOTE="SRAD97750, post: 222404, member: 425"] To be honest, we only have interest in helping others who come here, but your initial approach is imperative. You'll learn how important that is in life. When you say "blown piston," does that mean the piston rings are out of spec and the compression is low? Or is the piston worn as well and caused some cylinder scratching? The measurements of the installed piston/cylinder are important because there are 4 different pistons available in .50mm increments, 3 of which are oversized. This cylinder could already be an oversize, which means the new piston, even if you don't have the need to bore/hone could need to be oversize. Get back to me, and we'll set you up with not only the knowledge, but probably links to the cheapest option available. -BIG DAN:thumb: [/QUOTE]

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