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Thread: Air cooled engine options for 350x.

  1. #1
    Join Date
    Jan 2017
    Location
    Shawnigan Lake, BC
    --
    53

    Air cooled engine options for 350x.

    I'd like to start getting an engine together for my 350x roller I got when I bought my 350x. I have searched and read for a week but could use some input. I'm working towards utility/yard work, lower geared sprockets etc.

    What I want, is air cooled, electric start, reverse, chain drive and ideally auto clutch. I don't need big, more like 200-300cc's. I've been following matt350x's 400ex swap, which is awesome, but it may be more than I need.

    I know the 300ex is possible, though I don't know the years to look for, and it doesn't get me an auto clutch. Are there options out there that will do it all?

    Thanks for the help, mods move me if I'm in the wrong spot, and if this topic already exists.... search didn't find it.

  2. #2
    Merge_88 is offline At The Back Of The Pack Arm chair racerAt the back of the pack
    Join Date
    Nov 2007
    Location
    St. Louis area
    --
    262
    Look for a 200SX quad motor, it has everything you're after. Would possibly be kind of funny in a 350X chassis, but it's your trike so go for it!
    1983 Honda 70
    1983 Honda 200
    1986 Honda "Super" 200X
    1983 Honda 250R
    1985 Honda 250R
    1985 Honda Big Red
    1986 Honda 350X/400EX conversion
    2005 Yamaha WR450F conversion
    1985 Yamaha Tri-Zinger
    1986 Kawasaki Tecate


  3. #3
    Join Date
    Mar 2010
    Location
    Freedom Township, MI
    --
    641
    Maybe a 300ex with a rexluse clutch? Not sure if they make them for that engine but if they do it's a fairly easy engine swap

    Sent from my SM-G930V using Tapatalk
    Current Trikes:
    85 350x
    P3 (x2)

    Quads:
    2003 Polaris Predator 500
    1988 Yamaha Warrior
    2003 Polaris Predator 90

    Previous Trikes:
    84 Honda 110 (parts)
    85 Honda 110
    85 Honda 200x
    87 Honda 200x
    85 Honda 250sx
    KX 80 Trike conversion

    Gone and missed:

  4. #4
    Join Date
    Jan 2017
    Location
    Shawnigan Lake, BC
    --
    53
    Cool. That's a couple things I hadn't thought of. Thanks. I think reverse started in the 300ex in about 2005? Anyone able to confirm?

  5. #5
    Join Date
    Jun 2010
    Location
    Dracut Mass
    --
    307
    Quote Originally Posted by 67Sport View Post
    Cool. That's a couple things I hadn't thought of. Thanks. I think reverse started in the 300ex in about 2005? Anyone able to confirm?
    pretty sure every 300ex had reverse

  6. #6
    Join Date
    Jan 2012
    Location
    Carthage NY 250r rules
    --
    2,345
    The 250x had reverse its was basically the start of the 300ex
    250r rules

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