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Anonymous
Anonymous Posted on Aug 15, 2009
Answered

1977 TS185 won't run smoothly; carb adjustment problems

1977 TS185 won't run smoothly. What is the function of the 'screw with a spring on it' on the carb? When I turn it either way the idle speeds up or slows down prompting me to adjust the choke. The bike won't idle at a constant rate ever.

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  • Anonymous Aug 15, 2009

    Well that is good that I actually know what it is called... The manual that I have (from 1977) does not have any diagrams to where on the carb this mixture screw is, or what the factory settings are so I'm still in a pickle. There is one other screw that is flush with the carb that may be it.. I'll give it a few turns and find out!

    Thanks!

    Robin

    :)

  • Anonymous Aug 15, 2009

    Hey Rob!

    THANKS A LOT! I now have my bike idling at about 1800 RPM, choke off and 3/4 of a turn on the mixture screw! It's never ran that long without stalling!

    Robin

  • Anonymous Aug 15, 2009

    Hey Rob!

    THANKS A LOT! I now have my bike idling at about 1800 RPM, choke off and 3/4 of a turn on the mixture screw! It's never ran that long without stalling!

    Robin

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ROB

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  • Posted on Aug 15, 2009
ROB
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Thats the idle screw!
you need to adjust the mixture screw!

Testimonial: "Helped a little, still have problems :):("

  • ROB Aug 15, 2009

    ok n w you need to back off the idle screw!

    close the choke when the motor is at its normal operating temperature!

    then its a bit of a jugle between the two ok

    wind the mixture screw in all the way but not hard [just till it starts to bind up] or you will destroy the needle & damage its seatin point inside so go slowly!

    now turn it back out 2 & a 1/2 turns!

    from this point you should start bike & wind mixture screw untill it starts to drop the revs!

    check throttle response with a quick blip! & readjust the idle!

    keep doing this untill you are happy with its performance & idle speed!

    Thats the way its done !!!

    have fun & good luck!

    Cheers Rob

  • ROB Aug 16, 2009

    keep plying with it as it should idle at about 650 or so

    Cheers Rob

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