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Thread: 442cc atc 250sx.

  1. 04-14-2014, 03:36 AM #16
    Afrothunderkat's Avatar
    Afrothunderkat
    Afrothunderkat is offline At The Back Of The Pack Arm chair racerAt the back of the pack
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    SOUNDS NASTY! Can't wait for more pictures
    2003 RM 250 ::: 1985 ATC 250R ::: 1986 ATC 250ES
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    Quote Originally Posted by Tri-ZNate View Post
    Talking about the build quality, I got their exhaust and economy muffler and it fits together like tossing a hot dog down a hall way with nothing provided to take up the slop. Best $200 ever spent
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  2. 12-05-2014, 01:45 PM #17
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    legacy51
    legacy51 is offline First Time Rider Arm chair racerNew to the board
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    Any updates!?
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  3. 12-08-2014, 10:56 AM #18
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    oscarmayer
    oscarmayer is offline Power User The day begins with 3WW
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    bump for updates!
    my biggest concern now is the rear end. will it take it? that is the big question now. you may end up blowing up rear ends a lot.
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    Nearly every kind of Honda ATC (plus some custom ones
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  4. 12-08-2014, 11:25 AM #19
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    Darius1502
    Darius1502 is offline Power User Got the holeshot
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    Quote Originally Posted by 350xmerk View Post
    Ya that's the plan lol. I've built a couple with stock 300 honda motors that were fun in sure this one will haul with upped gearing. I'm really big into custom 300 honda 4x4 motors for mudding but already have a 477cc engine like this that has alot more goodies than this engine so I figured we will throw this one in a 3 wheeler lol
    Wow...that's awesome. How does the 477cc run?

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    1986 ATC 250r, 1986 Tri Z, 1990 LT 500R "Quadzilla"


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  5. 07-21-2015, 04:02 PM #20
    King Trikester
    King Trikester is offline At The Back Of The Pack Arm chair racerAt the back of the pack
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    BUMP just found this old thread, anyone else ever do anything like this??
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  6. 07-21-2015, 10:20 PM #21
    barnett468
    barnett468 is offline FACT ! I have no edit button Arm chair racerThe day begins with 3WW
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    Quote Originally Posted by King Trikester View Post
    BUMP just found this old thread, anyone else ever do anything like this??
    Yes, I was the parts mgr at Norm Reeves Honda/Kawasaki in 1975, and they sponsored a pro level desert racer, and there was a machine shop next door which was owned by Gary Fishburn, so they had him build a 500 cc engine from an XL350 . . It would roast the tire on the asphalt but would occasionally break 3rd gear.

    The trans probably would have held up if they would have installed a clutch that slipped a lot.
    .
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  7. 07-22-2015, 11:11 AM #22
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    hawaiirider
    hawaiirider is offline Got The Holeshot Arm chair racerJust too addicted
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    250sx is a awesome machine, however... if you ride hard, you WILL break the driveshaft where it connects to the motor, its inevitable and a huge job to fix..... i see more power making this happen quicker...
    Suzuki ALT 50: Skeeter
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  8. 07-22-2015, 02:16 PM #23
    TheRealFatShady
    TheRealFatShady is offline Roostin' Away Arm chair racerRoostin Away
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    Very nice! I've been dreaming of this for awhile, but I'd probably run a gear reduction and keep it as a mudder.

    Who did the machining on the flywheel? And are they able to do more?
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  9. 07-22-2015, 09:56 PM #24
    86125m
    86125m is offline Got The Holeshot Arm chair racerJust too addicted
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    this guy might be slightly insane but i really love where this motor is going i need more pics and a ride report ASAP!
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