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Everything Dirt Bike
Make / Model Specific
Honda
How to determine Valve Shim replacement if current gap is .000
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<blockquote data-quote="SRAD97750" data-source="post: 148468" data-attributes="member: 425"><p>You must pull the shim either way. <img src="https://www.dirtbikeaddicts.com/static/images/smilies/noidea.gif" class="smilie" loading="lazy" alt=":noidea:" title="Noidea :noidea:" data-shortname=":noidea:" /></p><p>The size or some number will be printed on it. That number correlates with the honda shim chart.</p><p>If not, use a micrometer, or vernier calipers.</p><p>Once you know what size is installed, subtract the specified spec from that measured size and install the nearest shim.</p><p> </p><p>EXAMPLE: if you find a 3.000mm shim and you need a .150 gap (made up spec) then you should purchase the shim nearest 2.850mm.</p><p><span style="font-size: 12px"><span style="font-family: 'Verdana'">73 different thickness shims are available from the thinnest 1.200 mm thickness shim to the thickness 3.000 mm thickness shim in intervals of 0.025mm.</span></span></p><p> </p><p>Another way is to use the honda calculator.</p><p><a href="http://crfsonly.com/calculators/crf250-valve-shim-calc.php" target="_blank">http://crfsonly.com/calculators/crf250-valve-shim-calc.php</a></p><p> </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: 148468, member: 425"] You must pull the shim either way. :noidea: The size or some number will be printed on it. That number correlates with the honda shim chart. If not, use a micrometer, or vernier calipers. Once you know what size is installed, subtract the specified spec from that measured size and install the nearest shim. EXAMPLE: if you find a 3.000mm shim and you need a .150 gap (made up spec) then you should purchase the shim nearest 2.850mm. [SIZE=3][FONT=Verdana]73 different thickness shims are available from the thinnest 1.200 mm thickness shim to the thickness 3.000 mm thickness shim in intervals of 0.025mm.[/FONT][/SIZE] Another way is to use the honda calculator. [URL]http://crfsonly.com/calculators/crf250-valve-shim-calc.php[/URL] -BIG DAN:thumb: [/QUOTE]
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Everything Dirt Bike
Make / Model Specific
Honda
How to determine Valve Shim replacement if current gap is .000
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