Carb help for 1988 Honda Fourtrax

Discussion in 'ATV Discussion' started by Blaze, Aug 12, 2019 at 2:31 PM.

  1. Blaze

    Blaze The Jeeper Reaper

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    Wake Forest, NC
    So I can't get my son's ATV to run right. The carb has always been stupid on it ever since I got it. The guy before me said it needed work on the carb, and I screwed with it last year and got it running ok, not great but ok, and now this year it stopped running all together. I could get it to idle sometimes, but would choke out when I gave it gas. Now it won't start at all. I took it off last night and I'd rather just replace it rather than eff with it any more. I also had to drill out a stripped screw for the plastic plate.

    The problem is that every single one I find isn't the same design as this one. This is an 88 Foreman/Fourtrax 250. The only ones I am finding have the single bolt plate for the throttle linkage, but this one has two bolts. Anyone know where I can get a new carb? I am a little worried about even ordering a new rebuild kit to try AGAIN because I don't know if I'll let the right one.

    20190811_205733.jpg
    20190811_205739.jpg
     
  2. junkxj

    junkxj Well poop!!!!!

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    Maybe it's the wrong carb for the atv?
     
  3. Blaze

    Blaze The Jeeper Reaper

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    No, I found a schematic online for the ATV that shows this carb, but I can't find it anywhere else. I am lost.
     
  4. junkxj

    junkxj Well poop!!!!!

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    From a quick search, it looks like they didnt make a 250 in 1988. All the 250 carbs are 87 and back. Maybe that's the reason you cant find one? Is yours a 300?
     
  5. YotaOnRocks

    YotaOnRocks Well-Known Member

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    Wall to Wall cycle in Pinnacle has always been very helpful when I had a problem. The lady that I always spoke with really knows her bikes.
     
  6. YotaOnRocks

    YotaOnRocks Well-Known Member

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    Is this it
    Screenshot_20190813-220329.png
     
  7. Blaze

    Blaze The Jeeper Reaper

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  8. Blaze

    Blaze The Jeeper Reaper

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    I tried to work on it a bit tonight. Whoever had it before me stripped out the screw heads when they rebuilt it, so I'd rather just replace it.
     
  9. a_kelley

    a_kelley mechanical fixer

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    I usually use vise grips to crack the Phillips screws loose, so they don't strip.. but you should be able to find a cheap China carb for it from Amazon or eBay.
     
  10. Blaze

    Blaze The Jeeper Reaper

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    My thought too, but every carb I find on eBay or Amazon are the other style and not this style.
     
  11. Blaze

    Blaze The Jeeper Reaper

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  12. Junkyard Dog

    Junkyard Dog Well-Known Member

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    Location:
    Sanford, NC
    I'll throw my 2 cents in. The exploded views y'all are referring to is for a TRX250x and doesn't share any similarities to a fourtrax250. First one is a sport bike and other is a utility. Hope this helps.
     
  13. Blaze

    Blaze The Jeeper Reaper

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    That exploded view of the TRX250X looks identical to the carb on this ATV though.
     
  14. jeepinmatt

    jeepinmatt Still Fat

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    Location:
    Stanley, NC
    I would highly recommend against a China carb. My dad put one on his mid 90s TRX300 and it never ran right. I scavenged a few parts off the china one, and put the original Keihin one back on, and now it runs great.

    Could yours have possibly been swapped for a China cheapie many years ago?
     
  15. Blaze

    Blaze The Jeeper Reaper

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    I don't think so, it look realllly old and not cheapie.
     
  16. Junkyard Dog

    Junkyard Dog Well-Known Member

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    I understand. They maybe similar in looks but jetting and such would be alot different. I'm fairly certain that the last year for the 250 was 87. 88 brought the 300 fourtrax I believe. Have a photo of said 4 wheeler?
     
  17. Blaze

    Blaze The Jeeper Reaper

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    Here's the only one I can find. Of course, missing the one piece of fairing that would have the engine size. :lol:
    2018-03-22 07.53.21.jpg
     
  18. karatejosh

    karatejosh Well-Known Member

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    We had one of those as a kid with the solid front axle it was a 300 or 350 I can remember


    Sent from my iPhone using Tapatalk
     
  19. Junkyard Dog

    Junkyard Dog Well-Known Member

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    Photo of a 87' 250x. I had one when I was 11-12. They were made in 87/88 and 91/92. Replaced by the 300ex in 93. Screenshot_20190815-160240.png
     
  20. junkxj

    junkxj Well poop!!!!!

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    This is the picture I found of the carb that should be on the atv......

    41bN0TKISGL.jpg

    My guess is that the one on the atv is for an earlier 250.....
     
  21. Ron

    Ron Dum Spiro Spero Moderator

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    Location:
    Sharon, SC
    I wonder if thats your problem.
    Somewhere in its history someone replaced it with te wrong piece and now you have improper fueling.
     

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