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Hearing a "clunk" from my motor

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xnoahx
Posts: 71
Joined: Sun Jan 22, 2006 8:57 pm
Location: Venutra, CA

Hearing a "clunk" from my motor

#1

Post by xnoahx » Tue Jan 31, 2006 8:45 pm

Just noticed this the other day, when I rev the egine from idle I think I hear a "clunk" coming from the engine. Wasnt sure at first but I just took off my drag pipes and put on the stock style exhaust and I can hear it much better now. I only get it when I rev it up from idle and I am not sure where exactly in the engine it is coming from. Just wondering if anyone has any ideas off the top of thier head.



PanPal
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Re: Hearing a "clunk" from my motor

#2

Post by PanPal » Wed Feb 01, 2006 4:12 pm

Have you checked your motor mount bolts? Also check your seat tube down next to the rear motor mount casting to make sure you do not have a cracked or broken frame.

xnoahx
Posts: 71
Joined: Sun Jan 22, 2006 8:57 pm
Location: Venutra, CA

Re: Hearing a "clunk" from my motor

#3

Post by xnoahx » Thu Feb 02, 2006 2:39 am

Ill give it a look tomorrow. I will also see if I can be more specific where it might be coming from.

Billy
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Re: Hearing a "clunk" from my motor

#4

Post by Billy » Thu Feb 02, 2006 8:22 am

Might wanna check tranny mounts as well... (be sure)

If you don't have a mechanic's stethoscope, you can use a long piece of pipe, or similar, to pin-point w/more accuracy..

fourthgear
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Re: Hearing a "clunk" from my motor

#5

Post by fourthgear » Thu Feb 02, 2006 5:53 pm

Belt or chain primary? If your chain is loose some times they make a bunch of noise when you first start to rev up. You would have a slight lag on start up and when shifting.Just something else to check.

xnoahx
Posts: 71
Joined: Sun Jan 22, 2006 8:57 pm
Location: Venutra, CA

Re: Hearing a "clunk" from my motor

#6

Post by xnoahx » Thu Feb 02, 2006 8:12 pm

Its the primary chain, just pulled the cover and watched it whack the housing a few times when reving it. Any way to adjust these? The only think I can think of is moving the transmission back a little.

Billy
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Re: Hearing a "clunk" from my motor

#7

Post by Billy » Thu Feb 02, 2006 8:18 pm

That would be the way. Which then requires ya to check yer R chain & adj accordingly.
+ shift linkage, & clutch linkage may need adj. too.

If the pr chain has any 'tight spots' in it, I'd replace it !!

xnoahx
Posts: 71
Joined: Sun Jan 22, 2006 8:57 pm
Location: Venutra, CA

Re: Hearing a "clunk" from my motor

#8

Post by xnoahx » Thu Feb 02, 2006 10:43 pm

The chain looked like its still in good shape so I went ahead and adjusted everything. Problem solved. Thanks for all the replies.

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