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Thread: TM 28 carb too heavy on the throttle pull.

  1. #1
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    23rd February 2007 - 08:47
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    TM 28 carb too heavy on the throttle pull.

    The TM28 pumper slide carb on my DRZ250 seems to need a lot of force at the throttle. The issue seems to be a too heavy gauge return spring on the main shaft. Cables move freely, throttle has no binding. Anybody know if this is a common complaint or of any fixes.

  2. #2
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    20th January 2010 - 14:41
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    Quote Originally Posted by SVboy View Post
    The TM28 pumper slide carb on my DRZ250 seems to need a lot of force at the throttle. The issue seems to be a too heavy gauge return spring on the main shaft. Cables move freely, throttle has no binding. Anybody know if this is a common complaint or of any fixes.
    The only bikes i have used with tm28s were all 2 strokes and i never noticed they were heavy.
    But Four strokes tend to have strong return springs to prevent them sucking the throttle open on over run.
    i would say the cable has been kinked or needs oiling.
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  3. #3
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    4th November 2003 - 13:00
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    Rode one yesterday, seemed fine to me, it's lighter than the TM28 on my Bucket

    If you're doing Amberley swing past home on the way back and compare, I'll be up there on my RMX #83 and Jumbo Transit van
    "If you can make black marks on a straight from the time you turn out of a corner until the braking point of the next turn, then you have enough power."


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    Even BP would shy away from cleaning up a sidecar oil spill.
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  4. #4
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    23rd February 2007 - 08:47
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    Quote Originally Posted by Kickaha View Post
    Rode one yesterday, seemed fine to me, it's lighter than the TM28 on my Bucket

    If you're doing Amberley swing past home on the way back and compare, I'll be up there on my RMX #83 and Jumbo Transit van
    Cheers for the offer kick. Enjoy the mud today?

  5. #5
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    4th November 2003 - 13:00
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    Quote Originally Posted by SVboy View Post
    Cheers for the offer kick. Enjoy the mud today?
    It wasn't too bad, just that stretch in the bottom of the gully, bike took a fair bit of cleaning though
    "If you can make black marks on a straight from the time you turn out of a corner until the braking point of the next turn, then you have enough power."


    Quote Originally Posted by scracha View Post
    Even BP would shy away from cleaning up a sidecar oil spill.
    Quote Originally Posted by Warren Zevon
    Send Lawyers, guns and money, the shit has hit the fan

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