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Old 02-09-08, 08:48 PM   #1
stnd
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Default Valve Clearance Tight

I recently put my front cylinder together and one of the exhaust valves has no clearance, I put a 135 shim in because that is all I had at the moment and still no clearance.

I am wondering how fast do valves burn out due to no clearance, if I need to ride 10km / day over the next week until I can get some smaller shims will the valve burn or melt.

thanks.
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Old 02-09-08, 09:01 PM   #2
Biker Biggles
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Default Re: Valve Clearance Tight

No clearance means the valve wont shut properly so I think you risk burning it out quite quickly.Id fix it before using it.
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Old 02-09-08, 10:52 PM   #3
embee
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Default Re: Valve Clearance Tight

Quote:
Originally Posted by stnd View Post
I......one of the exhaust valves has no clearance,.... *if I need to ride 10km / day over the next week until I can get some smaller shims **will the valve burn or melt.
*Don't.

**Yes it will....and probably lead to pre-ignition which will see off the piston too.
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