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Old 11-04-2012, 10:10 PM   #1 (permalink)
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Default KZ750 LTD Clatter

Hey guys,
I have an '81 KZ750 LTD that I have been working on for a while. When I got it, it ran pretty well witht he exception of the carbs needing to be cleaned. I put it off and put it off until it would no longer start. So last week I had a guy I know clean and rebuild the carbs. It starts and runs great, but now there is a clatter in the motor that was not present before. The guy that did my carb work is a motorcycle tech at a local dealer and a decent enough guy that I trust his opinion. He said that
it sounded like something came loose in the clutch basket. I got the clutch cover off and started poking around, but I can find absolutely nothing wrong with it. The sound is hollow like something is bouncing around the inside of the aluminum cover. Sounds wierd, but the best I can explain it is like a hollow "bock". (go ahead and make fun.) I rode it for about a mile just to see how the carbs were doing and the sound was rather loud on take-off and lower rpm, but seemed to diminish a bit at higher rpm. (Sorry no tach to give a reference here).
I only came across 1 post that seemed relevant to this topic in my forum search and it never had a conclusion. Could this be the cam chain tensioner I have been reading about elsewhere? Any thoughts you all have would me much appreciated.
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Old 11-23-2012, 02:33 PM   #2 (permalink)
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ive heard before that carbs out of sync can cause the motor to make weird noises
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Old 11-23-2012, 02:36 PM   #3 (permalink)
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Do you have the stock airbox on it or pods? Sometimes the carb slides make quite a noise with pods on there.

Also, have you checked the cam chain / tensioner ?

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Last edited by HardRacing; 11-23-2012 at 02:45 PM.
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