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Everything Dirt Bike
Make / Model Specific
Honda
1998 CR80R
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<blockquote data-quote="Trfsrfr" data-source="post: 210482" data-attributes="member: 3959"><p>I need some help with some measurements so I can decide what/how to do the top end;</p><p>Here are the specs from the service manual;</p><p>[ATTACH=full]30215[/ATTACH]</p><p>Here is what I have (mm/in.);</p><p><strong>Cylinder -</strong></p><p>Top from intake to exhaust : 46.99/1.850</p><p>bottom intake to exhaust : 47.02/1.851</p><p></p><p>Top from side to side : 46.99/1.850</p><p>bottom side to side : 46.96/1.849</p><p></p><p><strong>Piston - </strong></p><p>Top from intake to exhaust - 46.74/1.840</p><p>Bottom intake to exhaust - 46.96/1.849</p><p></p><p>Top side to side - 46.69/1.838</p><p>Bottom side to side - 46.84/1.844</p><p></p><p><strong>Ring end gap</strong> - .018".</p><p></p><p>It had 134 psi compression. Its been awhile since I've looked at numbers like this, not sure what to make of it...</p></blockquote><p></p>
[QUOTE="Trfsrfr, post: 210482, member: 3959"] I need some help with some measurements so I can decide what/how to do the top end; Here are the specs from the service manual; [ATTACH=full]30215[/ATTACH] Here is what I have (mm/in.); [B]Cylinder -[/B] Top from intake to exhaust : 46.99/1.850 bottom intake to exhaust : 47.02/1.851 Top from side to side : 46.99/1.850 bottom side to side : 46.96/1.849 [B]Piston - [/B] Top from intake to exhaust - 46.74/1.840 Bottom intake to exhaust - 46.96/1.849 Top side to side - 46.69/1.838 Bottom side to side - 46.84/1.844 [B]Ring end gap[/B] - .018". It had 134 psi compression. Its been awhile since I've looked at numbers like this, not sure what to make of it... [/QUOTE]
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Everything Dirt Bike
Make / Model Specific
Honda
1998 CR80R
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