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Everything Dirt Bike
General Dirt Bike
Need help finding the issue for a Apollo DB-21 Youth bike
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<blockquote data-quote="SRAD97750" data-source="post: 231731" data-attributes="member: 425"><p>If it didn't burp to life on starting fluid, but you have spark... then the timing is wrong, or not enough compression.</p><p></p><p>Compression is usually lost through the piston rings or a bent valve.</p><p>These motors are very easy to work on and gaskets and parts are dirt cheap.</p><p>I just re-ringed my 200 Lifan for $11</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: 231731, member: 425"] If it didn't burp to life on starting fluid, but you have spark... then the timing is wrong, or not enough compression. Compression is usually lost through the piston rings or a bent valve. These motors are very easy to work on and gaskets and parts are dirt cheap. I just re-ringed my 200 Lifan for $11 -BIG DAN:thumb: [/QUOTE]
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Everything Dirt Bike
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Need help finding the issue for a Apollo DB-21 Youth bike
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