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Author Topic: is timing chain noise common on 650? ( low mileage)  (Read 2353 times)

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gutterman73

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is timing chain noise common on 650? ( low mileage)
« on: July 31, 2006, 08:13:43 PM »
i just purchased my first bike and it is a 19890 cb650 custom. it has 10670 miles on it. youy can hear the timing chain making noise is this common? is it something that i need to worry about? the bike looks and runs great but has a couplr of issues to straighten out. is this one too?
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Offline 750goes

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Re: is timing chain noise common on 650? ( low mileage)
« Reply #1 on: August 01, 2006, 03:19:56 AM »
In answer to your questions
YES
YES
YES
(I'm not Meg Ryan...) Sleepless in Sydney
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Offline bryanj

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Re: is timing chain noise common on 650? ( low mileage)
« Reply #2 on: August 01, 2006, 03:22:25 AM »
I agree (and its not when Harry met Sally0
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Semi Geriatric ex-Honda mechanic and MOT tester (UK version of annual inspection). Garage full of "projects" mostly 500/4 from pre 73 (no road tax in UK).

Remember "Its always in the last place you look" COURSE IT IS YOU STOP LOOKIN THEN!

Offline 750goes

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Re: is timing chain noise common on 650? ( low mileage)
« Reply #3 on: August 01, 2006, 03:27:12 AM »
bryanj
I don't know movies, I just remembered here being in one, and that sort of sounded appropriate with my comments...I'm getting old and forgetful.... so she who must be obeyed says... :D

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Offline bryanj

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Re: is timing chain noise common on 650? ( low mileage)
« Reply #4 on: August 01, 2006, 03:32:21 AM »
Wot you mean getting! I GOT and the dearly beloved remunds me regularly--specialy as she is only 30!
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Semi Geriatric ex-Honda mechanic and MOT tester (UK version of annual inspection). Garage full of "projects" mostly 500/4 from pre 73 (no road tax in UK).

Remember "Its always in the last place you look" COURSE IT IS YOU STOP LOOKIN THEN!

Offline 750goes

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Re: is timing chain noise common on 650? ( low mileage)
« Reply #5 on: August 01, 2006, 03:57:38 AM »
Cradle snatcher - beware  :)
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Offline bryanj

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Re: is timing chain noise common on 650? ( low mileage)
« Reply #6 on: August 02, 2006, 05:59:01 AM »
Just for that i am going to post an offically approved (by the boss herself!) picture taken in the swimming pool at the Raddisson parkway orlanda whilst on Honeymoon this Aprril1 And whats more Yah Boo Sucks!
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Semi Geriatric ex-Honda mechanic and MOT tester (UK version of annual inspection). Garage full of "projects" mostly 500/4 from pre 73 (no road tax in UK).

Remember "Its always in the last place you look" COURSE IT IS YOU STOP LOOKIN THEN!

Offline bryanj

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Re: is timing chain noise common on 650? ( low mileage)
« Reply #7 on: August 03, 2006, 08:14:17 AM »
OK I know 20+ people have seen the boss's picture cos the counter tells me so and now she's pissed cos nobody has sent any comments. I KNOW I'm a lucky SOB but then it took a long time to get there. Regards to all Bryan
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Semi Geriatric ex-Honda mechanic and MOT tester (UK version of annual inspection). Garage full of "projects" mostly 500/4 from pre 73 (no road tax in UK).

Remember "Its always in the last place you look" COURSE IT IS YOU STOP LOOKIN THEN!

Offline mlinder

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Re: is timing chain noise common on 650? ( low mileage)
« Reply #8 on: August 03, 2006, 08:19:40 AM »
To be honest, my eyes are inexorably drawn to the cleavage there. But I try not to say anything, just as I don't say 'wow, look at that cleavage' about somebodys wife that's sitting next to me.

But there, now I've said it. I feel guilty for it too...
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Offline Fish

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Re: is timing chain noise common on 650? ( low mileage)
« Reply #9 on: August 03, 2006, 08:31:15 AM »
Sorry to hijack the post with a timing chain question  :P.
750goes said that the timing chain noise was something to worry about.  How much of an emergency is it to get it fixed?  What damage will cause if it isn't?
I have a '75 cb550f with lots of chain noise and have heard that it is just a feature of these old engines...

- Chad
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Offline 750goes

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Re: is timing chain noise common on 650? ( low mileage)
« Reply #10 on: August 03, 2006, 02:17:48 PM »
Fish,

Yes timing chain noise is something to be AWARE of , but not necessarily somethnig to be scared of, the amount of noise is relative to who is listening and how much NOISE you are used to, so just a regular and proper adjustment will normally keep most camchain NOISE within your acceptable limits, also check you manual or this site for lots of ways to adjust your camchain properly.

 :)
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Offline nickjtc

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Re: is timing chain noise common on 650? ( low mileage)
« Reply #11 on: August 03, 2006, 04:33:00 PM »
Having been through this discussion on this and the 650 forum I can relate to concerns in this area. As long as you follow the camchain adjustment procedure outlined for your particular machine (and it seems there are all kinds of ideas on the right way to do it) you have done the best you can do to quell excess noise.

Having said that, my bike seems to run quieter overall when EVERYTHING is tuned up and tip-top.

I suspect that a certain amount of 'rustle' is normal from the top end of our bikes.
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Offline cbjunkie

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Re: is timing chain noise common on 650? ( low mileage)
« Reply #12 on: August 03, 2006, 05:49:32 PM »
She's obviously a total sweetheart, Bryan! Look at that beautiful smile!

Did y'all go to Mickey Mouse World??
cbj...
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Re: is timing chain noise common on 650? ( low mileage)
« Reply #13 on: August 04, 2006, 04:44:41 PM »
The 650 have got a HyVo camchain, and no, it shouldn't rattle when correctly tensioned. You will hear some noise from the tappets, the cam chain, the clutch and the primary drive when you start the engine from cold, but once the engine is warm it should be quiet. You should also make shure you adjust the valve cle clearances before you conclude you have a cam chain noise. The problem with the cam chain is that the semi automatic tensioner sometimes is stuck and doesn't move and take up the slack in the chain when you loosen the lock nut on the tensioner and rotate the engine.

And like nickjtc said, some of us have found our own way to deal with this problem. And he is right, a full tune up and getting the carbs synched will help.
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Offline bryanj

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Re: is timing chain noise common on 650? ( low mileage)
« Reply #14 on: August 05, 2006, 03:13:22 AM »
Sorry folks I got carried away there (not needing oxygen yet) didnt mean to hijack a serious post! Fish, i sent you the "Hoe To" from 30 yrs of experience.
The 500/550/650 camchain tensioner is one of Hondas most reliable, Unlike the 400, but all the chains can get a slack (or tight) spot and it can be worth trying to tension at several different points to get the quietest BUT BEWARE with the Hy-Vo chains of getting them too tight as then can and do snap, normally on the 250/400 twins but possibly on others.
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Semi Geriatric ex-Honda mechanic and MOT tester (UK version of annual inspection). Garage full of "projects" mostly 500/4 from pre 73 (no road tax in UK).

Remember "Its always in the last place you look" COURSE IT IS YOU STOP LOOKIN THEN!
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