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A bird in my motor?!?!

Discussion in 'XJ Technical Chat' started by Mad_Bohemian, Aug 31, 2009.

  1. Mad_Bohemian

    Mad_Bohemian Active Member

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    Well I finally got the carbs on my project bike. Hooked up a temporary fuel feed and tried to get her running. In the process of cranking it over to get it running I would hear an occasional 'chirp'. Once I finally got it running the 'chirp' was constant and very noticeable. It disappears on acceleration but other wise is constant. It sounds like it's coming from the top backside of the motor. Is it possible to have the cam chain too tight?I wouldn't think so w/the automatic tensioner. Looks like I'm gonna have to pull the valve cover....any other ideas? Anyone else ever heard the chrip chirp chirp?!?! 8O
     
    Mad_Bohemian, Aug 31, 2009
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  2. MiCarl

    MiCarl Active Member

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    Sounds like starter clutch.
     
    MiCarl, Aug 31, 2009
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  3. Mad_Bohemian

    Mad_Bohemian Active Member

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    Is that a pretty easy fix?!?!
     
    Mad_Bohemian, Aug 31, 2009
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  4. lowlifexj

    lowlifexj Member

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    hey Brian way to go got her running :D
    I don't know any starter clutch tricks though.
     
    lowlifexj, Aug 31, 2009
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  5. XJ700VET

    XJ700VET Member

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    I had a squeak type sound that came from behind the cylinders where the intake manifold attaches. The sound was very regular at low RPM's. My problem was the gasket that fits between the two would suck air and cause the gasket to vibrate fast enough to make the squeak sound, sort of like blowing on a piece of grass between your thumbs. I was able to fix it by cutting new gaskets and using some gasket sealer only on the manifold and the gasket. Don't know if thats your problem but, thats how I fixed mine.

    Cheers
    Ken
     
    XJ700VET, Sep 1, 2009
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  6. Mad_Bohemian

    Mad_Bohemian Active Member

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    Thanks Ken,
    I did a search for "chirp" and I found a couple threads with that same issue/solution. I'm hoping that's all mine is because if it's a starter clutch,(since that requires splitting the engine cases) then I'm thinkin' there's a bike gonna be for sale...but I'll rule out the simple fixes first.
     
    Mad_Bohemian, Sep 1, 2009
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  7. Mad_Bohemian

    Mad_Bohemian Active Member

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    YAAAAY!!! No starter clutch problem!!!! Took the carbs off and added some form-a-gasket on gasket for #2, put em back on and...no more birdie!!! phew...that a load off my mind. Looks like I'll have to strip and clean the carbs though. She'll run but she won't idle.... more to come...
     
    Mad_Bohemian, Sep 1, 2009
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