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Everything Dirt Bike
Make / Model Specific
Yamaha
YZ450F 2005 roll starts but won’t kick start
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<blockquote data-quote="subserver" data-source="post: 228876" data-attributes="member: 5338"><p>Hey guys, thanks for the advice. The valves were pretty worn out so I have gotten a new set as the old ones were pretty hard to get correct clearances for, I had to file down the shims and still couldn’t get the gap required. Wasn’t far off, but I guess this motor is pretty picky huh. </p><p></p><p>Back to work for now so will be continuing the repair another day, but thanks for the advice. I’ll get a new cam chain and replace the valves , will pay special attention to get good clearances this time and see how that goes </p><p></p><p>also for note the compression was 150 when spinning over fast enough for auto decompression to not be enabled. When auto decompression was working (aka kick starting) it was only 50psi</p></blockquote><p></p>
[QUOTE="subserver, post: 228876, member: 5338"] Hey guys, thanks for the advice. The valves were pretty worn out so I have gotten a new set as the old ones were pretty hard to get correct clearances for, I had to file down the shims and still couldn’t get the gap required. Wasn’t far off, but I guess this motor is pretty picky huh. Back to work for now so will be continuing the repair another day, but thanks for the advice. I’ll get a new cam chain and replace the valves , will pay special attention to get good clearances this time and see how that goes also for note the compression was 150 when spinning over fast enough for auto decompression to not be enabled. When auto decompression was working (aka kick starting) it was only 50psi [/QUOTE]
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Everything Dirt Bike
Make / Model Specific
Yamaha
YZ450F 2005 roll starts but won’t kick start
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