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Everything Dirt Bike
Make / Model Specific
Yamaha
1993 Yamaha WR500 Top End Inspection
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<blockquote data-quote="SRAD97750" data-source="post: 183930" data-attributes="member: 425"><p>OK. Looks amazing...</p><p>Piston average 86.70-73mm</p><p>Cylinder average 86.78-82mm</p><p>Ring lands 0.046"</p><p>Piston Ring Thickness 0.045"</p><p>Ring End Gap 0.025"</p><p></p><p></p><p></p><p>Ring End Gap change over 60Hrs = 0.006-8" or 44% growth. (Personal Service Limit is 0.036")<img src="https://www.dirtbikeaddicts.com/static/images/smilies/thumb.gif" class="smilie" loading="lazy" alt=":thumb:" title="Thumb :thumb:" data-shortname=":thumb:" /></p><p>Piston/Cylinder Clearance = 0.08-0.085mm (Service limit 0.105mm)<img src="https://www.dirtbikeaddicts.com/static/images/smilies/thumb.gif" class="smilie" loading="lazy" alt=":thumb:" title="Thumb :thumb:" data-shortname=":thumb:" /></p><p>Ring/Land Clearance =0.001"<img src="https://www.dirtbikeaddicts.com/static/images/smilies/thumb.gif" class="smilie" loading="lazy" alt=":thumb:" title="Thumb :thumb:" data-shortname=":thumb:" /></p><p></p><p>I will sleep on it, but the A+P mechanic in me says I should run it to 100Hrs and check again. </p><p>New pin, Clips, and Bearing of course. The pin has a blue line... me no likey...</p><p></p><p>Fit, Form, Function. -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><p></p><p>[ATTACH=full]24910[/ATTACH]</p><p></p><p>[ATTACH=full]24911[/ATTACH]</p><p></p><p>[ATTACH=full]24912[/ATTACH]</p><p></p><p>Faint Blue Line on the left. The right end is not brown, just a weird photo.</p><p>[ATTACH=full]24913[/ATTACH]</p></blockquote><p></p>
[QUOTE="SRAD97750, post: 183930, member: 425"] OK. Looks amazing... Piston average 86.70-73mm Cylinder average 86.78-82mm Ring lands 0.046" Piston Ring Thickness 0.045" Ring End Gap 0.025" Ring End Gap change over 60Hrs = 0.006-8" or 44% growth. (Personal Service Limit is 0.036"):thumb: Piston/Cylinder Clearance = 0.08-0.085mm (Service limit 0.105mm):thumb: Ring/Land Clearance =0.001":thumb: I will sleep on it, but the A+P mechanic in me says I should run it to 100Hrs and check again. New pin, Clips, and Bearing of course. The pin has a blue line... me no likey... Fit, Form, Function. -BIG DAN:thumb: [ATTACH=full]24910[/ATTACH] [ATTACH=full]24911[/ATTACH] [ATTACH=full]24912[/ATTACH] Faint Blue Line on the left. The right end is not brown, just a weird photo. [ATTACH=full]24913[/ATTACH] [/QUOTE]
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Everything Dirt Bike
Make / Model Specific
Yamaha
1993 Yamaha WR500 Top End Inspection
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