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clunking/ticking noise while in all gears at low rpm
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clunking/ticking noise while in all gears at low rpm - October 19, 2016, 02:05 PM

hey guys, this is kind of long but hopefully i've covered everything. i started noticing a clunking noise at low rpm and low speed a few weeks ago and i'm at a loss as to the cause. bike is a 2009 fz1 with about 65k miles on it.

i first noticed it around parking lot speed or starting to move at a stoplight. but it never happens at the start of a ride, only starts after riding 200+ miles. it's only noticeable at low rpms in all gears. the faster the bike is going, the clunking becomes more of a fast tick. at higher rpms, it's probably still there but the wind and engine noise just drowns it out. if i pull in the clutch and coast, no matter which gear, rpm or speed, the sound always goes away.

on the centerstand if i spin the rear wheel, i don't notice any kinks or binding of the chain. the clunking sound doesn't start until about 200+ miles into a ride, so i don't think it's the chain (RK530XSO which has about 23k miles on it, oem chain lasted me 43k miles).

could it be clutch related, since the clunking goes away when i pull in the clutch lever? it's on the original clutch, but still feels like new. i do mostly freeway rides anyway. could it be the clutch basket, friction plates, pressure plate, bearing? i'm open to suggestions on how to go about diagnosing this.


2013 Toyota Prius C4, holding up traffic...
2009 FZ1 (R-77 carbon exhaust, PC V, BMC air filter, D-shaped 'flies, chopped airbox and AIS, FCE; SW-Motech toprack and quick-release siderack, E55 topcase, pair of V35 sidecase, Woodcraft frame sliders)
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October 19, 2016, 02:56 PM

With what you explained, sounds clutch related, maybe even pressure plate.
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October 19, 2016, 02:58 PM

I vote clutch as well. If it were simply a ticking noise then I'd say you have exhaust leak.


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October 19, 2016, 03:33 PM

thanks. i've never taken a clutch apart so i have no idea what to look for, but i guess i'll dive in and see what i can find and see what's obviously abnormal.


2013 Toyota Prius C4, holding up traffic...
2009 FZ1 (R-77 carbon exhaust, PC V, BMC air filter, D-shaped 'flies, chopped airbox and AIS, FCE; SW-Motech toprack and quick-release siderack, E55 topcase, pair of V35 sidecase, Woodcraft frame sliders)
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October 19, 2016, 04:06 PM

This is often not recommended... but...

If you put the front tire against something like a wall, and lift the rear wheel using the centerstand (or preferably a paddock stand because keeping the rear suspension partially loaded might be better for troubleshooting) you can run the bike at slow speed and might figure out where the noise is coming from pretty easily.

I've done this several times before and my bike hasn't flown of the stands and drove itself anywhere; just don't get crazy with the throttle. haha!


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October 19, 2016, 04:33 PM

Center stand works too if you have one. Try recording a video if you can


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October 19, 2016, 04:41 PM

i thought about doing that too but it doesn't start clunking until 200+ miles into a ride. this past weekend after doing 900 miles, it didn't start clunking until the last day when i was nearing 300 miles for the day.


2013 Toyota Prius C4, holding up traffic...
2009 FZ1 (R-77 carbon exhaust, PC V, BMC air filter, D-shaped 'flies, chopped airbox and AIS, FCE; SW-Motech toprack and quick-release siderack, E55 topcase, pair of V35 sidecase, Woodcraft frame sliders)
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October 19, 2016, 06:18 PM

Sounds like a worn out clutch basket.


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October 20, 2016, 08:29 AM

Quote:
Originally Posted by Sal_the_man View Post
Center stand works too if you have one. Try recording a video if you can
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October 20, 2016, 09:29 AM

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October 20, 2016, 09:37 AM

anyone have a universal clutch holder i can borrow so i can take off the clutch basket? or is one not needed? was planning to take an impact wrench to it and hope that would take it off.


2013 Toyota Prius C4, holding up traffic...
2009 FZ1 (R-77 carbon exhaust, PC V, BMC air filter, D-shaped 'flies, chopped airbox and AIS, FCE; SW-Motech toprack and quick-release siderack, E55 topcase, pair of V35 sidecase, Woodcraft frame sliders)
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October 20, 2016, 09:48 AM

How many miles on chain and sprockets?


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October 20, 2016, 09:48 AM

My money is on that trio


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October 20, 2016, 09:54 AM

about 23k miles on current chain/sprockets. replaced all 3 at 43k miles, which is how long the OEM sprockets/chain lasted me. i ride like a granny on a sunday afternoon stroll. tires last me 12k miles too.


2013 Toyota Prius C4, holding up traffic...
2009 FZ1 (R-77 carbon exhaust, PC V, BMC air filter, D-shaped 'flies, chopped airbox and AIS, FCE; SW-Motech toprack and quick-release siderack, E55 topcase, pair of V35 sidecase, Woodcraft frame sliders)
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October 21, 2016, 04:20 PM

Quote:
Originally Posted by Leoallafila View Post
How many miles on chain and sprockets?
I was pondering the same...


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