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Main Area => General GS500 Discussion => Topic started by: Tekime on May 05, 2015, 03:56:16 PM

Title: Rattle while compression braking
Post by: Tekime on May 05, 2015, 03:56:16 PM
Hey --

2005 GS500f - I noticed a weird rattling noise coming from near the front end (mayybe the motor) while decelerating, particularly when compression braking or just easing off the throttle with RPMs.

It sounds more like a clattering loose something-or-other and hasn't affected the bike aside from the noise, but it has me worried.

Bone stock, no obvious loose parts -- anyone get this before? I've heard about the GS having rattling issues but this under fairly specific conditions.

Thanks
Title: Re: Rattle while compression braking
Post by: Slack on May 05, 2015, 04:03:09 PM
When was the last valve adjustment done?
Title: Re: Rattle while compression braking
Post by: gsJack on May 05, 2015, 04:25:42 PM
Decel at what speed?  If engine braking at low speeds a well worn front sprocket will make a noise like you describe.  It's the chain clicking off the hooked teeth.  Check the sprocket for wear.
Title: Re: Rattle while compression braking
Post by: Tekime on May 05, 2015, 05:34:16 PM
Quote from: Slack on May 05, 2015, 04:03:09 PM
When was the last valve adjustment done?

Unknown. Bought it last summer with 8k miles in immaculate condition. Was planning on doing a valve adjust/check in the next 4-6 weeks, weather/time/cash permitting...

Quote from: gsJack on May 05, 2015, 04:25:42 PM
Decel at what speed?  If engine braking at low speeds a well worn front sprocket will make a noise like you describe.  It's the chain clicking off the hooked teeth.  Check the sprocket for wear.

Speed doesn't seem to make a difference. Interesting I'll check the front sprocket.

Just hit 12k miles on the bike BTW.

Thanks for the help any other thoughts welcome I'll post anything else I find!
Title: Re: Rattle while compression braking
Post by: jaynavajo15 on May 05, 2015, 05:49:37 PM
My 06 gsf makes a similar noise I was worried as well. Shop informed me its just my front sprocket that is worn.
Title: Re: Rattle while compression braking
Post by: Atesz792 on May 06, 2015, 01:56:46 AM
Been there, done that. In my case, it was a REALLY loose drive chain. Check it immediately, it's a dangerous condition!
Title: Re: Rattle while compression braking
Post by: Tekime on May 06, 2015, 10:17:23 PM
Quote from: Atesz792 on May 06, 2015, 01:56:46 AM
Been there, done that. In my case, it was a REALLY loose drive chain. Check it immediately, it's a dangerous condition!

Same.. lots of play. Adjusted the chain and no more noise!  :cheers:

Noticed a tiny bit of wear on the outside edge of the pins like it was really slapping around in there, I better check that more often
Title: Re: Rattle while compression braking
Post by: Slack on May 07, 2015, 02:48:26 PM
Quote from: Tekime on May 06, 2015, 10:17:23 PM
Quote from: Atesz792 on May 06, 2015, 01:56:46 AM
Been there, done that. In my case, it was a REALLY loose drive chain. Check it immediately, it's a dangerous condition!

Same.. lots of play. Adjusted the chain and no more noise!  :cheers:

Noticed a tiny bit of wear on the outside edge of the pins like it was really slapping around in there, I better check that more often

Like once a week!!! A chain that's too loose can jump the sprocket and lock up the rear wheel.