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Everything Dirt Bike
Make / Model Specific
Kawasaki
89 kx 125 coolant oil mix disaster
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<blockquote data-quote="SRAD97750" data-source="post: 203013" data-attributes="member: 425"><p>Two facts here have me puzzled. (Last two top ends I did were an 89 KX 125 and 86 yz250. I am quite familiar.)</p><p></p><p>I can see what appears to be a steel sleeve at the face of the cylinder as well as at the ports. The KX I did had a sleeve for whatever reason. $50 bore and a $75 piston kit, kid is riding hard again.</p><p>Try a magnet on that bore, if it sticks, do some measuring to see if an oversized piston is available and room to bore.</p><p></p><p>The other bit is the second land on that piston. I thoroughly searched every piston available for the 89 KX125, and 100% of them were single ring. Not sure where they found that one, but it also plays into my thinking this has a sleeve already.</p><p>-BIG DAN<img src="https://www.dirtbikeaddicts.com/static/images/smilies/thumb.gif" class="smilie" loading="lazy" alt=":thumb:" title="Thumb :thumb:" data-shortname=":thumb:" /></p></blockquote><p></p>
[QUOTE="SRAD97750, post: 203013, member: 425"] Two facts here have me puzzled. (Last two top ends I did were an 89 KX 125 and 86 yz250. I am quite familiar.) I can see what appears to be a steel sleeve at the face of the cylinder as well as at the ports. The KX I did had a sleeve for whatever reason. $50 bore and a $75 piston kit, kid is riding hard again. Try a magnet on that bore, if it sticks, do some measuring to see if an oversized piston is available and room to bore. The other bit is the second land on that piston. I thoroughly searched every piston available for the 89 KX125, and 100% of them were single ring. Not sure where they found that one, but it also plays into my thinking this has a sleeve already. -BIG DAN:thumb: [/QUOTE]
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Everything Dirt Bike
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Kawasaki
89 kx 125 coolant oil mix disaster
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