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Thread: Atc 110 WILL NOT RUN

  1. #1
    Join Date
    Jul 2021
    Location
    Canada
    --
    1

    Question Atc 110 WILL NOT RUN

    I need ideas. Will not run at all. New top end didn’t run before it sparks but maybe not super strong i don’t know. I’ve tried gas and I’ve tried ether. Freshly rebuilt carb gone through throughly. Wiring kinda sketchy but I see spark. Valve timing is good clearances seem good not an expert though. I’ve ruled out fuel because I’m using ether. No gas in oil. Kill switch is off. Please help I just want to ride it! I noticed if I roll the motor over in a specific spot back and forth the carb breathes in and out of a vent in the throat of it is this normal? If you want me to send a video of it let me know and I’ll send it where ever nesscary.

  2. #2
    Join Date
    Jul 2005
    Location
    az
    --
    1,949
    start with the basics.
    was it running when you got it then stopped? did you buy a non running project? give us a little background on when it stopped running. jim
    81 185s
    82 185s with 85 200s motor
    suspended 185s
    85 atc70
    1984 200s
    85 350x 3rd owner
    and a 72 ct70

    projects coming along

    85 200s
    81 suspended 185s (can't believe I came across 2)
    1982? 185s

  3. #3
    Join Date
    Mar 2023
    Location
    Earth
    --
    78
    If you "just wanna ride" get something new. Old machines take a lot of work and always will.

    "Didn't run before"

    Why? Did you bother to figure out why it didn't run or just put a new top end on it?

  4. #4
    Join Date
    Apr 2019
    Location
    South Dakota
    --
    248
    All gas engine need the same things. Fuel, air, compression, and spark.
    If you have all 4, make sure they all are happening at the same time.
    Maybe try using a drill to turn the engine over. Sometimes that faster turning is all they need for that initial start. Make sure your CDI rotor is not 180 degrees off. It will spark at the wrong time.


    Sent from my iPhone using Tapatalk
    Currently : trx400fw, ct70, 250es,200x, xl80s, 350x, 350x, 225DX, trx300

  5. #5
    207wheelin is offline At The Back Of The Pack Arm chair racerFirst time rider
    Join Date
    Mar 2019
    Location
    Northern Maine
    --
    150
    What year is this ATC110? I have an older 110 with points and it had spark but not enough to get it to fire under compression. Once the points were replaced and properly gapped the spark was strong and the engine now starts first pull.
    ✌207

  6. #6
    Join Date
    Apr 2011
    Location
    Mexico
    --
    9,003
    Check your filter, some are directional.

    Click image for larger version. 

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    It sucks to get old

  7. #7
    Join Date
    Apr 2019
    Location
    South Dakota
    --
    248
    Quote Originally Posted by El Camexican View Post
    Check your filter, some are directional.

    Click image for larger version. 

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    That’s the funniest thing I’ve seen in a while. Cheers to that one cheers !


    Sent from my iPhone using Tapatalk
    Currently : trx400fw, ct70, 250es,200x, xl80s, 350x, 350x, 225DX, trx300

  8. #8
    Join Date
    Apr 2011
    Location
    Mexico
    --
    9,003
    Quote Originally Posted by Homeless Dave View Post
    That’s the funniest thing I’ve seen in a while. Cheers to that one cheers !


    Sent from my iPhone using Tapatalk
    Somebody sent me that a couple weeks ago and I LMFAO.
    It sucks to get old

  9. #9
    Join Date
    Mar 2007
    Location
    Texas
    --
    5,046
    it's tired, maybe it needs a nap?
    ________________
    I'm just a squirrel "Trying" to get a nut!

    Nearly every kind of Honda ATC (plus some custom ones
    several Yami Quads (mostly custom built for MX racing)

    https://www.mikesatvfix.com

    "Freedom is not free...but the U.S. Marine Corps will pay most of your share."

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