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Thread: Mini-R project

  1. #1
    Join Date
    Dec 2007
    Location
    Quebec,Canada
    --
    1,012

    Mini-R project

    Long time I didn't post a project here but I Always look the thread.Life change but will Always be in the ATC world.My brain give me an idea and I have to try it.Fit a 250R in a atc70.First problem,cylinder head clearance,solution? laydown…. I have see it with a aircooled but not with the liquid..

    I will have to build a custom frame.Many years ago I start s built with a sl70 frame and a lifan 140,it run but I never finished the project.I will use the custom fork and swingarm for this built
    Attached Thumbnails Attached Thumbnails 96947939_2578939782379264_1664408915074351104_n.jpg   96157926_1177484802585407_9061996685181321216_n.jpg   97117346_538814043688530_7487964288720568320_n.jpg  

    1986 ATC500X
    1985 ATC250SX
    1985 ATC200X
    1985 ATC250R
    1986 ATC250R
    1984 ATC250R
    1981 ATC70
    1984 ATC70
    1985 ATC70
    Custom built ATC70 / 250R laydwon swap
    1986 ATC250SX FATCAT

  2. #2
    HondaRidr's Avatar
    HondaRidr is offline At The Back Of The Pack Arm chair racerAt the back of the pack
    Join Date
    Sep 2010
    Location
    Salt Lake
    --
    330
    Any progress?

  3. #3
    Join Date
    Dec 2007
    Location
    Quebec,Canada
    --
    1,012
    I will try to have time to finish the engine this Week...2 custom gasket to do and it's done...
    Attached Thumbnails Attached Thumbnails DSCF4870.JPG  

    1986 ATC500X
    1985 ATC250SX
    1985 ATC200X
    1985 ATC250R
    1986 ATC250R
    1984 ATC250R
    1981 ATC70
    1984 ATC70
    1985 ATC70
    Custom built ATC70 / 250R laydwon swap
    1986 ATC250SX FATCAT

  4. #4
    Join Date
    Oct 2003
    Location
    Las Vegas, NV.
    --
    2,446
    Interesting project. Will the counter-balancer be removed completely, or relocated?
    Red Rider's Sand Machine Updated 07/23/14

  5. #5
    Join Date
    Dec 2007
    Location
    Quebec,Canada
    --
    1,012
    Removed, yes I know it will vibrate more than originally…

    1986 ATC500X
    1985 ATC250SX
    1985 ATC200X
    1985 ATC250R
    1986 ATC250R
    1984 ATC250R
    1981 ATC70
    1984 ATC70
    1985 ATC70
    Custom built ATC70 / 250R laydwon swap
    1986 ATC250SX FATCAT

  6. #6
    Join Date
    Dec 2007
    Location
    Quebec,Canada
    --
    1,012
    More progress, now the frame....
    Attached Thumbnails Attached Thumbnails 20200526_221807.jpg   20200526_221756.jpg   20200526_221741.jpg  

    1986 ATC500X
    1985 ATC250SX
    1985 ATC200X
    1985 ATC250R
    1986 ATC250R
    1984 ATC250R
    1981 ATC70
    1984 ATC70
    1985 ATC70
    Custom built ATC70 / 250R laydwon swap
    1986 ATC250SX FATCAT

  7. #7
    Join Date
    Dec 2007
    Location
    Quebec,Canada
    --
    1,012
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    The project seem to have low interrest but Here are some progress ,custom frame, need to tear it down and finish all weld,sandblast and paint, New fender are coming, same lenght as a stock 70 , 1 1/2 inch higher on top of tank
    Last edited by atc500x; 08-26-2020 at 10:12 PM.

    1986 ATC500X
    1985 ATC250SX
    1985 ATC200X
    1985 ATC250R
    1986 ATC250R
    1984 ATC250R
    1981 ATC70
    1984 ATC70
    1985 ATC70
    Custom built ATC70 / 250R laydwon swap
    1986 ATC250SX FATCAT

  8. #8
    HondaRidr's Avatar
    HondaRidr is offline At The Back Of The Pack Arm chair racerAt the back of the pack
    Join Date
    Sep 2010
    Location
    Salt Lake
    --
    330
    This is going to be really neat! It will be a beast to control being stock length haha.

  9. #9
    Join Date
    Oct 2020
    Location
    ME
    --
    113
    Everything else thats ever been labeled "death machine" is going to need a new label after this. Awesome.
    1980 Honda 110-125 lifan manual clutch *in progress*

    1985 200x - building peice by piece

  10. #10
    rayatc84's Avatar
    rayatc84 is offline At The Back Of The Pack Arm chair racerFirst time rider
    Join Date
    Aug 2010
    Location
    France
    --
    194
    Really no idea how could I have missed this thread...

    Awesome construction!

    There was a time where this thread would have had much more interest here.
    Outside of engines with holes that stink, there is no salvation...

    My feedback thread: here!
    Want to see overseas 3wheelers? http://www.passion-atc.com of course!

    YT60 Tri-Zinger, YT70 Tri-Zinger modified, '84 ATC 70, '82 ATC 110, '82 250R, '82 250R modified, '84 250R, '84 480R in build, '85 310R, '86 250R, '87 250ES BigRed, '84 FL250 Odyssey, '85 FL350 Odyssey

  11. #11
    jasong_10's Avatar
    jasong_10 is offline At The Back Of The Pack Arm chair racerAt the back of the pack
    Join Date
    Apr 2020
    Location
    Croghan, New York
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    420
    Quote Originally Posted by Blmpkn View Post
    Everything else thats ever been labeled "death machine" is going to need a new label after this. Awesome.
    Yeah, my R is stock and I couldn't imagine that power in a chassis half the size . . .
    Jason

    85 ATC 250R - restored stock other than 18" rears, nerf bars, Honda key switch, 14T front sprocket, and white tank and plastics (except rad shrouds)

    87 ATC 200X - restored stock other than 18" rears and nerf bars

    84 TRX 200 - rough but complete budget restore for wife and eventually daughters to bum around on

    Eton Viper 50cc - oldest daughter's current ride

  12. #12
    Join Date
    Dec 2007
    Location
    Quebec,Canada
    --
    1,012
    Quote Originally Posted by rayatc84 View Post
    There was a time where this thread would have had much more interest here.
    Exactly what I think....

    1986 ATC500X
    1985 ATC250SX
    1985 ATC200X
    1985 ATC250R
    1986 ATC250R
    1984 ATC250R
    1981 ATC70
    1984 ATC70
    1985 ATC70
    Custom built ATC70 / 250R laydwon swap
    1986 ATC250SX FATCAT

  13. #13
    Join Date
    Dec 2007
    Location
    Quebec,Canada
    --
    1,012
    Finally! Assembly done,will do startup soon if weather is good...
    Attached Thumbnails Attached Thumbnails 20201113_200844.jpg   20201113_200821.jpg   20201113_203659.jpg   20201113_200901.jpg   20201113_200801.jpg   20201113_200744.jpg  


    1986 ATC500X
    1985 ATC250SX
    1985 ATC200X
    1985 ATC250R
    1986 ATC250R
    1984 ATC250R
    1981 ATC70
    1984 ATC70
    1985 ATC70
    Custom built ATC70 / 250R laydwon swap
    1986 ATC250SX FATCAT

  14. #14
    Join Date
    Jul 2009
    Location
    South Florida
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    6,722
    Your going to need wheelie bars lol .
    Awesome job !!
    78 atc 90/180cc Dickson Full Suspension
    76 ATC90/180cc Nicholson
    77 atc 90 Dickson Full Suspension
    84 KLT 110/123cc Powroll Racer from 80s
    87 atc 125m stock
    84 atc 200x Curtis Sparks
    84 atc 200x Powroll My race bike from 80's
    83 atc70/108cc Powroll blue Xmas Special
    81 atc185s HP-ATC full suspension

    Performance Shop is Open PM me for Service

    My Feedback http://www.3wheelerworld.com/showthr...ck+shortline10

  15. #15
    Join Date
    Oct 2020
    Location
    ME
    --
    113
    Too cool. Congrats!
    1980 Honda 110-125 lifan manual clutch *in progress*

    1985 200x - building peice by piece

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