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  1. #1
    Trent_sl750's Avatar
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    1995 sl 750 idling extremly high

    I cant seem to get my sl750 to idle lower that 5000+ on the hose. I know they run a little more rpms outa water around 3000 rpms but not 5000. I know i my motor is air tight from doing a leak down test and it didnt loose any vac at all. My idler screw is backed all the way off. Any ideas why its idling so high?


  2. #2
    john zigler's Avatar
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    Check your throttle cable adjustment. Have you had the carbs off lately? If everything else check out, it has to be your cable is adjusted out too far, and not letting the drum return all the way. You can look with a mirror to see if the stop is resting on the adjustment screw.

  3. #3
    BlueFishCrisis's Avatar
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    In addition, make sure all the butterflies are properly sync'd. If one stays open while the other close all the way, you could experience higher idle....

  4. #4
    ripcuda's Avatar
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    Could be a leak between the carbs and intake. I'm assuming you had the carbs off when you leak tested...

    Hey... but at least it runs, right?

    Cheers!

  5. #5
    Trent_sl750's Avatar
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    Yes i have had the carbs off lately, an The throttle cable seems to have a little play in the wire actually, the pto butterfly is perfectly sealed shut, but the mag and cen arent completely touching but the gap is extermly small, you have to look to see it, its hard to notice. You definately couldnt get a pen head in it. I will check the drum adj screw first i guess

  6. #6
    I transcend race Hombre! TBone14's Avatar
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    Check fuel stuff for air leaks - could easily be a leaned out engine running away - def. don't do any prolonged runs like that until you figure it out - a couple of seconds at a time

  7. #7
    Trent_sl750's Avatar
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    I might have a ripped gasket where the carbs meet the intake. It could be leaking from there possibly?

  8. #8
    ripcuda's Avatar
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    Yes... a tear in the carb-to-intake gasket would allow it to suck in an uncontrolled amount of air and could cause your high idle revs. I'd definitely investigate and rule-out that possibility.

    Cheers!

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