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General Category => Yamaha FJ1100 / FJ1200 Running Problems => Topic started by: carthagewarrior on September 26, 2012, 10:11:27 AM

Title: engine or clutch rattle
Post by: carthagewarrior on September 26, 2012, 10:11:27 AM
i love my 92 FJ to bits but i have a chain rattle sound..
On cold start it seems to be non existant but as soon as he is warm enough to shut the chock off., rattle rattle rattle... loud and annoying. However some times when i put a little load on the engine it can either lessen or stops all together until the cluch is pulled again.
I have been told to "live with it" but it can be a little embarrassing  :unknown:


Title: Re: engine or clutch rattle
Post by: Dads_FJ on September 26, 2012, 12:05:44 PM
How many km on the clock?
Title: Re: engine or clutch rattle
Post by: FJmonkey on September 26, 2012, 12:09:31 PM
Find your self a mate near by with an FJ that you can compair you noise to. The starter chain is the frequent offender of rattle like noises. If so then cost to fix it makes most of us just live with it.
Title: Re: engine or clutch rattle
Post by: fj11.5 on September 26, 2012, 03:53:37 PM
great minds think alike monkey, and sometimes we do too  :lol: , , I said the same thing on his welcome post
Title: Re: engine or clutch rattle
Post by: FJSpringy on September 26, 2012, 04:12:52 PM
Unless it really drives you nuts, I would live with it until you decide to freshen up the rest of the internals.


Head over to the 013 rally in March next year and you will get to hear a heap of funny noises coming from various FJ's or more likely their inebriated owners   :lol:
Title: Re: engine or clutch rattle
Post by: carthagewarrior on September 26, 2012, 09:30:58 PM
Is it possibly the clutch boss?? guess im kinda hoping to get out of it lightly hahaha, was just a little worriying cos 400km out here is like a walk in the park!!
Title: Re: engine or clutch rattle
Post by: carthagewarrior on September 26, 2012, 09:33:35 PM
might be time to get louder exhausts lol :shout:
Title: Re: engine or clutch rattle
Post by: RichBaker on September 28, 2012, 08:31:03 PM
 With only 2300 miles on the clock, when I bought my used '90, the clutch and the cams rattled at idle.... I rode it by my LYS, known them for years, I was told it is normal... Don't worry about it. 18 years later, it still rattles at idle..... 
I look at like a Duc, the dry clutch rattles worse than anything you've ever heard before...
Title: Re: engine or clutch rattle
Post by: Flynt on September 28, 2012, 09:56:27 PM
You should hear it with the Keihin Flatsides!  racerman had a great term for it, the "tinkle" of the flatsides.  They rattle back and forth in the grooves they slide in and scare most people passing near while you idle.  Sounds like the thing is ready to self destruct at any moment and you should likely get away. :bomb:


Once you realize it is normal and OK, you can begin to respect these quirks as character elements.  FJ's rattle and clatter, especially if your idle RPM is a little low.  If you add cams and flatsides your FJ will rattle, clatter, tinkle, and lope all at the same time...  now that's character! :rofl2:


Frank
Title: Re: engine or clutch rattle
Post by: andyb on September 29, 2012, 08:32:41 AM
They get worse if the idle's set really low.  1100rpm sounds much nicer than 800.

Title: Re: engine or clutch rattle
Post by: racerman_27410 on September 29, 2012, 08:48:48 AM
Quote from: Flynt on September 28, 2012, 09:56:27 PM



Once you realize it is normal and OK, you can begin to respect these quirks as character elements.  FJ's rattle and clatter, especially if your idle RPM is a little low.  If you add cams and flatsides your FJ will rattle, clatter, tinkle, and lope all at the same time...  now that's character! :rofl2:


Frank


this...... air cooled engines make noises... ride more and worry less! :good2:


KOokaloo!

Frank
Title: Re: engine or clutch rattle
Post by: FJmonkey on September 29, 2012, 09:01:25 AM
Quote from: racerman_27410 on September 29, 2012, 08:48:48 AM
this...... air cooled engines make noises... ride more and worry less! :good2:

KOokaloo!

Frank
For all you open pipe and dry clutch fans out there..... Loud starter chains saves lives.....
Title: Re: engine or clutch rattle
Post by: Jim_C on October 06, 2012, 11:48:48 AM

On cold start it seems to be non existant but as soon as he is warm enough to shut the chock off., rattle rattle rattle...


[/quote]

I have my '94 FJ1200 for two months now, and thism is exactly how mine was. However, I fully serviced it including the valves & carbs balanced. 3 valves were slightly off and the cards were out of sync. With this sorted it's a different bike and is now very smooth and once warmed up idles lovely at 1000 rpm.

It might be worth checking the valves & carbs.

Best of luck!