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  1. Collapse Details
    Re: Old school buggy build / Pro-ATV and Briggsbuilt magazine articles.
    #21
    Keeper of the Asylum K-fab's Avatar
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    Quote Originally Posted by Martinm210 View Post
    Looks like a 2 stroke 250. Never tried it, but always figured you could bandsaw cut and turn bend pieces (then weld) to reroute a pipe as needed. As long as the general length and outer dimensions relative to length are maintained it should have the same pipe tune.
    Spot on with both comments, Martin.
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    Re: Old school buggy build / Pro-ATV and Briggsbuilt magazine articles.
    #22
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    Its a 2 smoke, and yes a pipe can be cut and
    reworked in the way that is mentioned,
    ...but length and diam. is fairly critical as to
    the powerband , and where it peaks, etc
    On a 2 stroke , the pipe is the "magic"
    as to where and how the powerband
    and hp is delivered.
    You can do all the work you want to
    porting, head, intake, carb, etc,
    ...but most who have run, and has worked
    with a dyno, ...the pipe can make or break
    the entire engine build.
    Anybody that had used pipe building
    software can probably attest to this,
    since raising or widening a port,
    changing comp ratios, etc, etc, even
    minimal,
    the software will tune in and change
    the pipe dimensions that are required.
    Last edited by yamaha7442; 05-21-2014 at 12:19 AM.
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    Re: Old school buggy build / Pro-ATV and Briggsbuilt magazine articles.
    #23
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    The spindle mount built and
    tacked in, and now can build
    an adjuster



    Old shifter karts, quads, atv's, and sleds
    seem to be some of the best parts doner's
    for a smaller buggy like this one.
    Found a steering wheel, with the clutch
    lever on the steering hub.

    Last edited by yamaha7442; 05-22-2014 at 02:19 AM. Reason: resize pics smaller
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    Re: Old school buggy build / Pro-ATV and Briggsbuilt magazine articles.
    #24
    Keeper of the Asylum K-fab's Avatar
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    Can you knock those pix down to 800 pixels wide?
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    Re: Old school buggy build / Pro-ATV and Briggsbuilt magazine articles.
    #25
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    ok

    ...that work better ?
    Last edited by yamaha7442; 05-22-2014 at 02:22 AM.
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    Re: Old school buggy build / Pro-ATV and Briggsbuilt magazine articles.
    #26
    Keeper of the Asylum K-fab's Avatar
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    Thank you.
    They fit so much better now.

    Your build looks good too.
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    Re: Old school buggy build / Pro-ATV and Briggsbuilt magazine articles.
    #27
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    No luck finding any other older buggys
    in Dirt Wheels magazines, but found
    this one doing some image searching

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    Re: Old school buggy build / Pro-ATV and Briggsbuilt magazine articles.
    #28
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    More free stuff !

    FMF Gold Series Gnarly pipe for a KTM 300 XC.

    Sent out a bunch of messages to mx riders,
    looking for a used 250 pipe.

    One guy replied back with this one,
    but it has a few dents, and "doesnt
    fit the bike right any more".
    Drive over and get it, was the price ...

    Not sure if it should be fixed and sold,
    or make a few cuts and rework it ?
    ...but it would look cool on the buggy !

    See what the Build and Click software
    says about the different dimensions


    .
    Last edited by yamaha7442; 05-23-2014 at 07:50 PM. Reason: spelling
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    Re: Old school buggy build / Pro-ATV and Briggsbuilt magazine articles.
    #29
    Millenium Member Martinm210's Avatar
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    You could try and see. Maybe you can measure lengths and diameters and plug into some software. I'd still be inclined to just make a few cuts in the stock pipe and reroute as needed for a comparison though.

    Always upgraded my pipes on my 2 strokes as well, but it was always one tuned for the bike. Hard to beat free if it works!

    Build is looking good.
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    Re: Old school buggy build / Pro-ATV and Briggsbuilt magazine articles.
    #30
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    After taking a few measurements
    and checking the software, the
    FMF pipe might work well, but
    never know til its tried. The
    stock pipe is way off ( junk ), comparing
    the dimensions.
    The Atc motor is rated at about 30hp,
    and the Ktm around 46hp

    The part number lists the FMF pipe to fit
    all these bikes, which means its kind of generic
    and not purpose built anyway.
    Kind of odd, since a 250cc pipe vs 300cc
    should be way different


    FITS KTM 250-300 EXC, MXC, SX, XC, XC-W -
    2004-2010


    .
    Last edited by yamaha7442; 05-24-2014 at 08:38 AM. Reason: spelling
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