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Old July 22nd, 2009, 10:38 PM   #1
Monkeyevil
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Default Valve clearance...

Working on a KLX650 (big single)

Spec for intake valve clearance is .010 to .019
Exhaust is .015 to .024

I just measured .005 to .006 all around.

I pulled my shims and have the numbers I need in hand to run and get them tomorrow if they are in stock. If they arent, is there a chance I will hurt anything running this weekend with the current setup (maybe 100 miles max?)

Will I see any noticable power increase with the correct clearances?

Thanks!
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Old July 23rd, 2009, 06:02 AM   #2
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You're fine.

Some people like to run them that tight in other engines - and many others never bother even checking

You shouldn't notice anything between the two clearances - what you notice when they get really tight is that it's hard to start (you're losing compression out of leaky valves). The big question is: Is this your first check? Have they moved since the last check? How long between checking?

I'm sure you're fine, but if you notice valves clearances tightening up, it indicates receding valve seats or deteriorating valves. This is just additional info - that motor in your bike is about as bulletproof as they come

Ride that focker no matter what you do with the valves today!
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Old July 23rd, 2009, 09:30 AM   #3
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I had to pull them to get the size anyway, so I left it apart last night. Ran to the Kawi dealer this morning and they traded me for the sizes I needed. Should be all set.

I am not sure if my father ever checked them, and this is my first.

Thanks for the advice sir.
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Old July 24th, 2009, 03:18 PM   #4
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That was cool of your dealer to exchange them let alone have shims in stock. I've become frustrated relying on local dealers to have even basic parts in stock.
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