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Thread: what alternative thumb throttle can go on a atc 70

  1. #1
    Join Date
    Oct 2013
    Location
    utah
    --
    3

    what alternative thumb throttle can go on a atc 70

    I have a 83 ATC 70 and I've noticed that some places sell aftermarket thumb throttles for them but they just look like Chinese pieces of crap will a TRX 90 thumb throttle work on it and if so do I need to run the ATC cable or a TRX cable or change the carb or anything need to be adjusted to accommodate the throttle please let me know I'm in a hurry to finish the bike for my daughter And this Iis my last needed part

  2. #2
    Join Date
    Apr 2012
    Location
    USA
    --
    4,133
    You would have to have good photos of the new cable/thumb throttle, however if it is sold for the ATC70, it should be a direct fit. Might be worth while contacting the sites that sell the aftermarket thumb throttle and ask them directly, since they have the product in hand.

  3. #3
    fastatc70 is offline At The Back Of The Pack Arm chair racerFirst time rider
    Join Date
    Aug 2012
    Location
    Northbrookfield, Ma
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    166
    Try this. Pick up the thumb throttle and have a custome cable made. Any good shop will be able to make a custome cable for short money.
    I am running a Honda 400ex throttle opening a 28mm carb. The custome cable was 25 bucks. Any thumb throttle will work just as long as it has enough pull. A thumb throttle opening a 12 mm carb will not open a 16 mm carb fully, but a 16 mm pull thumb throttle will open a 12 mm carb all you have to do is adjust the throttle stop.
    Trikes:
    1985 ATC 70 mod to 184cc
    1984 ATC70 mod to 124cc
    1983 ATC 70 Xmas restoration

    Quads:
    1986 TRX 250R
    2002 TRX 400EX
    2- LT80 for the kids
    1986 LT 50

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