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  1. #1
    trepetti (OP)
    It's all good! Sprag clutch problem? trepetti's Avatar
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    Sprag clutch problem?

    Started up for my morning ride today uneventfully. Met my buddy for coffee, went to start up and starter motor spins freely without the sprag clutch engaging. Bump started the bike and rode another 90 minutes or so. Got home, shut down, hit the starter, bike started right up. Three times.

    Likely going to tear it down over the weekend, but am curious if anyone has had any issues like this.
    2005 FZ6 - R6 Forks, FZ1 bar, Killernoodle clutch lever, Puig windscreen, Woodcraft sliders, BD43 headlight mod, Watsen LED signals, 2-Wheels levers, SW Motec tank bag, Givi topcase, Galfer SS brake lines, LED pod lights, Hyperlites, Grip Puppies

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    Vrrroooooom! Sprag clutch problem? Motogiro's Avatar
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    Re: Sprag clutch problem?

    First time Ive heard of a problem with it. Wondering if it's got some gunk in it and maybe need some tlc. Maybe brake cleaner and a fresh shot of oil?
    If you can't fix it by hitting it with a hammer, it's electrical!

    Clif
    SoCal Hoon

  4. #3
    2007 FZ6 TownsendsFJR1300's Avatar
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    Re: Sprag clutch problem?

    There was just a similar post within the last week or so.

    Turned out the ELECTRIC ROTOR bolt came loose. One of the starter gears engages with the back of the rotor...


    Posts #13 and 16: https://www.600riders.com/forum/fz6-...bration-2.html
    Last edited by TownsendsFJR1300; 05-17-2019 at 12:59 PM.
    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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  6. #4
    2 Da Street, Knobs R Gone FinalImpact's Avatar
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    Re: Sprag clutch problem?

    Something to be said for the high detergent oils in an automatic transmission. Either the sprague clutch blows up or it works.

    Part of me says you're fine for the duration but what if it stalled at a light and you two needed out of harms way???

    Do pull it apart and look tho I doubt you find anything.


    Curious; what oil you use and your OCI?
    08 Raven w/a few mods...
    R6 Forks, R1 Rear Shock (revalved), 6 Ignition Advance, S1 CAT free Header, SS Mid-Pipe, 2Bro Exhaust, AIS block off plates, Bazzaz Z-Fi Fuel Controller & Z-AFM Data Logger, Air Box mod, CR10E Plugs, 48-Tooth Rear Sprocket, FZ1 Bars, Spider Grips, Adj levers, Powder Coated -Triple, Bars & Rear Sets, Solid mounted rear-sets w/knurled pegs, Dual Headlight, Tail Tidy, LED Combo Brake & Directionals, LED POD lights & Tinted PUIG Wind Screen!

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  8. #5
    trepetti (OP)
    It's all good! Sprag clutch problem? trepetti's Avatar
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    Re: Sprag clutch problem?

    Quote Originally Posted by FinalImpact View Post
    Something to be said for the high detergent oils in an automatic transmission. Either the sprague clutch blows up or it works.

    Part of me says you're fine for the duration but what if it stalled at a light and you two needed out of harms way???

    Do pull it apart and look tho I doubt you find anything.


    Curious; what oil you use and your OCI?
    So I geared up for my morning ride and hit the started button. Started perfectly. Made 2 stops on my errand run and all was great. Too nice a day to pull it apart. Going out riding in a little. I too feel this was an anomaly. No odd sounds when starting, and in the 7 years / 55k miles I have owned her she has only had the starter button hit with a running engine maybe 3 times, and not within the last 2 years at least. But it will haunt me until it either breaks or fades into the past.

    As to your questions, I have been using Shell Rotella T6 for about 4 years now. It is JASO MA rated and has not had any side effects. As for intervals, I am pretty good keeping a 3 to 3.5 k or once a season, whichever comes first.
    2005 FZ6 - R6 Forks, FZ1 bar, Killernoodle clutch lever, Puig windscreen, Woodcraft sliders, BD43 headlight mod, Watsen LED signals, 2-Wheels levers, SW Motec tank bag, Givi topcase, Galfer SS brake lines, LED pod lights, Hyperlites, Grip Puppies

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