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Thread: Clunky FZ6S2

  1. #1
    ottoatom (OP)
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    Clunky FZ6S2

    Hello all,

    I had the chain and sprockets changed a few days ago on my FZ6 as they were all rusty and worn out (20k miles and probably never changed).

    Since the service there is a noise I dont remember having heard before. Whenever I release the throttle and twist it again there is a"clunk" noise coming from the lower part of the bike. It happens when I am on 1st and 2nd for sure, it might happen on the other ones as well but I cant hear it. This is not the clunk you hear when changing gear, this happens when riding at normal speeds and when I engage the clutch and twist the throttle.

    Is this something someone has already experienced?

    thx

  2. #2
    Vrrroooooom! Clunky FZ6S2 Motogiro's Avatar
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    Re: Clunky FZ6S2

    You want to make sure the sprocket assemblies have been properly installed properly. There should be no play between the rear spocket and the wheel. There may be missing cush drive rubbers at the rear wheel or the front sprocket may be loose, Also check the chain slack to see that it is to specification. You should have about 1.8 inch slack. Others will chime in....
    Last edited by Motogiro; 06-19-2017 at 06:24 PM.
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    2 Da Street, Knobs R Gone FinalImpact's Avatar
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    Re: Clunky FZ6S2

    Quote Originally Posted by Motogiro View Post
    You want to make sure the sprocket assemblies have been properly installed properly. There should be no play between the rear spocket and the wheel. There may be missing cush drive rubbers at the rear wheel or the front sprocket may be loose, Also check the chain slack to see that it is to specification. You should have about 1.8 inch slack. Other will chime in....
    Those were my thoughts exactly. ^^^ Thanks for saving me the effort of typing it.

    I can't imagine someone loosing the cush drive rubbers but stranger things have happened.
    08 Raven w/a few mods...
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    2007 FZ6 TownsendsFJR1300's Avatar
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    Re: Clunky FZ6S2

    Very likely NOT your issue but put the bike on the CC.

    Check chain play at the taughtest point. It should be about 2" or 50mms TOTAL up and down.

    Many shops OVER TIGHTEN the chain
    Scott
    2007 Yamaha FZ6- BD43 headlight mod, PIAA bulbs, Stebal air horn, Scorpion SS pipes-(no DB killers), Speedohealer, HEL SS brake lines, Fenda Extenda, K&P SS re-usable oil filter, custom mounted BMW style electrical outlet(L.S.), Techmount GPS mount with handlebar bar risers/set backs, additional helmet lock, custom mod'ed seat(Spencers), Hyper light-rear running/brake light, custom radiator/fan protector, Techspec tank pads, Grip Puppies, Yamaha rear rack with custom aluminum flat rack.

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