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Thread: 1985 250es carb replacement now backfiring

  1. #1
    Join Date
    Nov 2022
    Location
    Kentucky
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    2

    1985 250es carb replacement now backfiring

    This is my first ATC. My grandpa bought it new in 1985. He passed away last year so Iím trying to restore it somewhat. It would start, but throttle would kill it every time. I replaced and carb and spark plug and now when I try to start it, it backfires and wonít start up. Any advice on solving this would be appreciated!

  2. #2
    Join Date
    Feb 2016
    Location
    Stellenbosch, South Africa
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    173
    Why did you replace the carb? And with what did you replace it? It is always best to just rebuild the OEM carb.
    1983 Honda ATC250R
    1983 Honda ATC200E BIG RED (sold)
    1984 Honda ATC200X (sold)
    1985 Honda ATC250ES BIG RED
    1985 Honda ATC70 x 2
    2001 Honda TRX90
    2004 Honda TRX300EX (sold)
    2008 Honda TRX250TM
    1976 Suzuki RV90M (sold)
    1967 Vespa Primavera 125
    1958 Massey Ferguson 35

  3. #3
    Join Date
    Nov 2022
    Location
    Kentucky
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    2
    Quote Originally Posted by deejaycee_2000 View Post
    Why did you replace the carb? And with what did you replace it? It is always best to just rebuild the OEM carb.
    I have no experience with it but just thought from the throttle killing it that the carb wasnít doing itís job well. I replaced with just with a compatible carburetor I found on Amazon.

  4. #4
    HondaRidr's Avatar
    HondaRidr is offline At The Back Of The Pack Arm chair racerAt the back of the pack
    Join Date
    Sep 2010
    Location
    Salt Lake
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    321
    Hopefully you kept the original carb to rebuild or have a shop rebuild for you. The chinese carbs are usually nothing but trouble.

  5. #5
    Join Date
    Feb 2016
    Location
    Stellenbosch, South Africa
    --
    173
    Replacement Amazon carbs do not work well on these machines, I would suggest rebuilding the carb or finding a shop that can rebuild it for you .... these guys do a pretty good job: www.223cycles.net
    1983 Honda ATC250R
    1983 Honda ATC200E BIG RED (sold)
    1984 Honda ATC200X (sold)
    1985 Honda ATC250ES BIG RED
    1985 Honda ATC70 x 2
    2001 Honda TRX90
    2004 Honda TRX300EX (sold)
    2008 Honda TRX250TM
    1976 Suzuki RV90M (sold)
    1967 Vespa Primavera 125
    1958 Massey Ferguson 35

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