Attex 400 carb setting

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Thread: Attex 400 carb setting

  1. #1

    Attex 400 carb setting

    Sorry if this is a repost. I am a new Attex owner and know absolutely nothing about them. I found an early 70’s 400 model. It is in extremely good shape and runs good. It has a JBL single cylinder engine. Does anyone know the proper adjustment for the needle valve? I live in Texas so not an altitude problem. Thanks in advance for the help!

  2. #2
    Join Date
    Jun 2007
    Location
    Northern VA
    Posts
    2,765
    Mikuni carburetor? The original engine would have had one, but the single must be a transplant.
    Stuck in the seventies- not in the swamp.

    (6) Attex, a Hustler, a Super Swamp Fox, (2) Tricarts, (3) Tri-sports, a Sno-co trike, 3 Dunecycles, and a Starcraft! ...so far

  3. #3
    send a picture of the carb from the back side of engine set upneed to see it mikuni or tittlson ect....i have many attex's 400 440 super chiefs 500's...usaually therestwo needle valves on the 400 rich-ness vs the air-port 2/3rds out vs 1/3rd out

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