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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Exhaust valve not right
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<blockquote data-quote="evcomet" data-source="post: 97650" data-attributes="member: 3681"><p>Took an extended ride on the Comet today. All seemed to behave as one would expect.</p><p>I put the bike on the center stand put my gear away and got my Multimeter out to check battery charging.</p><p></p><p>Comet was off for 10 to15 minutes. When I attempted to kick the bike over, it behaved as if the compression release was being engaged.</p><p></p><p>I kicked a few more times without success. Got a cold drink, 15 minutes later the bike started immediately. But being a "the sky is falling" kind of guy, I</p><p>decide to put the bike on the lift and take a closer look.</p><p>I found the exhaust valve spring loose. I can grab the spring with my fingers and lift spring and valve 3/8". </p><p></p><p>Looking at the parts book, I am guessing that the valve guide has come adrift of its proper position.</p><p></p><p></p><p>Questions...</p><p></p><p>1) Is the easiest way to remove the head to remove the UFM?</p><p>2) Do you replace with an oversized guide?</p><p></p><p>Any advice would be appreciated.</p><p></p><p>Jerry</p></blockquote><p></p>
[QUOTE="evcomet, post: 97650, member: 3681"] Took an extended ride on the Comet today. All seemed to behave as one would expect. I put the bike on the center stand put my gear away and got my Multimeter out to check battery charging. Comet was off for 10 to15 minutes. When I attempted to kick the bike over, it behaved as if the compression release was being engaged. I kicked a few more times without success. Got a cold drink, 15 minutes later the bike started immediately. But being a "the sky is falling" kind of guy, I decide to put the bike on the lift and take a closer look. I found the exhaust valve spring loose. I can grab the spring with my fingers and lift spring and valve 3/8". Looking at the parts book, I am guessing that the valve guide has come adrift of its proper position. Questions... 1) Is the easiest way to remove the head to remove the UFM? 2) Do you replace with an oversized guide? Any advice would be appreciated. Jerry [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Exhaust valve not right
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