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Thread: Dumb question about the pilot screw setting on ATC 185s.

  1. #1
    StangLX302's Avatar
    StangLX302 is offline At The Back Of The Pack Arm chair racerAt the back of the pack
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    Dumb question about the pilot screw setting on ATC 185s.

    My trike is idling VERY rich. I can see black smoke puffing out at idle. If you let it idle too long it stalls and the plug is all black. Once you take it for a ride, it cleans right out and runs good, until you let it idle again.

    My question is: Do you turn the pilot screw IN or OUT to make it leaner?

    P.S. Right now it's at the factory setting of 2 turns out from bottom. Is something else wrong if it's running rich at this setting?
    1981 Honda ATC 185s
    -DG Exhaust
    -200x Carb
    -Uni Filter
    -Air filter box removed
    -10T Front Sprocket
    -Plastic fuel tank
    -Aftermarket seat
    -200s front forks/shocks
    -Aftermarket 4 bolt rear wheels
    -Tire chains when ice riding


    1988 Ford Mustang LX 5.0L
    -Wayyyy too much to list!!!

  2. #2
    Join Date
    Mar 2003
    Location
    West Monroe, LA
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    847
    in, try a 1/4 turn at a time.
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    Perfection consists not in doing extraordinary things, but in doing ordinary things extraordinarily well.

  3. #3
    StangLX302's Avatar
    StangLX302 is offline At The Back Of The Pack Arm chair racerAt the back of the pack
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    Thank you.
    1981 Honda ATC 185s
    -DG Exhaust
    -200x Carb
    -Uni Filter
    -Air filter box removed
    -10T Front Sprocket
    -Plastic fuel tank
    -Aftermarket seat
    -200s front forks/shocks
    -Aftermarket 4 bolt rear wheels
    -Tire chains when ice riding


    1988 Ford Mustang LX 5.0L
    -Wayyyy too much to list!!!

  4. #4
    Join Date
    Sep 2002
    Location
    Rittman, Ohio
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    6,276
    The air screw is to be adjusted for best throttle response off of idle, and not based on plug readings. the pilot jet controls the idle mixture but they all tend to run rich at idle, so unless its become a real problem, id leave it alone.

  5. #5
    StangLX302's Avatar
    StangLX302 is offline At The Back Of The Pack Arm chair racerAt the back of the pack
    Join Date
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    302
    So, maybe I should just kick the idle speed up a hair to stop the stalling? Because it seems fine if I just hold the throttle open a hair.

    Sorry for all the dumb questions guys. This is my first three wheeler (first any small engine toy really) and I've only had it running a short time.
    1981 Honda ATC 185s
    -DG Exhaust
    -200x Carb
    -Uni Filter
    -Air filter box removed
    -10T Front Sprocket
    -Plastic fuel tank
    -Aftermarket seat
    -200s front forks/shocks
    -Aftermarket 4 bolt rear wheels
    -Tire chains when ice riding


    1988 Ford Mustang LX 5.0L
    -Wayyyy too much to list!!!

  6. #6
    StangLX302's Avatar
    StangLX302 is offline At The Back Of The Pack Arm chair racerAt the back of the pack
    Join Date
    Jun 2003
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    302
    <-----------BTW, I just took this pic about 45 minutes ago and it's running awesome. (besides the little idle problem).
    1981 Honda ATC 185s
    -DG Exhaust
    -200x Carb
    -Uni Filter
    -Air filter box removed
    -10T Front Sprocket
    -Plastic fuel tank
    -Aftermarket seat
    -200s front forks/shocks
    -Aftermarket 4 bolt rear wheels
    -Tire chains when ice riding


    1988 Ford Mustang LX 5.0L
    -Wayyyy too much to list!!!

  7. #7
    Join Date
    Dec 2003
    Location
    Ontario, Canada
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    235

    .

    My old 185 was the same way, just gave up on the idle and would shut it off all the time, never went through a plug after that, just had to start it alot
    1986 452x, 4inch westcoast swinger, full exhaust, and stage 5 racing kit
    99 honda 300 4x4
    06 Forman 500 4x4
    07 Fourtrax 420 FI

    Previous rides
    81 250r, 83 Cr 250, 85 250 big red, 80 185, 84 200s, 83 KLT 200, 86 Alt 185, 01 WR 250, 83 250r, 84 250r, 1986 350x, 1985 350x, 87 350x, 91 big bear, 01 DS 650, 03 Kodiak 450.

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