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Thread: 84 CR engine in a 85 ATC frame?

  1. #1
    Join Date
    Jul 2005
    Location
    Ontario, Canada
    --
    457

    84 CR engine in a 85 ATC frame?

    anyone done this?? i have a guy that will give me the whole bike... i want to get my 85 trike goin tho.... was thinking the engine might just slide right in?? lol i have to track the guy down n all that to get the bike still !!!!
    '85 ATC 250R
    FMF Fatty & Power Core
    Boyesen Rad Valve
    38 PWK A/S
    K&N w/PF (next purchase)
    LSR +4 Axcaliber axle
    LSR Duel row bearing carrier
    DuraBlue Anti-fade (to be installed)
    13/36 sprockets
    '85 ATC 250R
    Parts trike (maybe future build?)

  2. #2
    200xranger's Avatar
    200xranger is offline At The Back Of The Pack Arm chair racerFirst time rider
    Join Date
    Jun 2007
    Location
    St. Louis
    --
    207
    one thing to remember is cr motors kick backwards. atc motors kick forward.
    Three Wheels Are Better Than Four!!
    My Rides:
    85 250r atc
    85 tri z
    2012 honda rincon 680

  3. #3
    Join Date
    Jul 2005
    Location
    Ontario, Canada
    --
    457
    AH crap!! there wouldn't be enough room to kick backward :@
    the crank for a cr is smaller, right? the jug should fit i think tho? lol
    '85 ATC 250R
    FMF Fatty & Power Core
    Boyesen Rad Valve
    38 PWK A/S
    K&N w/PF (next purchase)
    LSR +4 Axcaliber axle
    LSR Duel row bearing carrier
    DuraBlue Anti-fade (to be installed)
    13/36 sprockets
    '85 ATC 250R
    Parts trike (maybe future build?)

  4. #4
    ailll1's Avatar
    ailll1 is offline At The Back Of The Pack Arm chair racerAt the back of the pack
    Join Date
    Dec 2009
    Location
    Québec
    --
    405
    Remove your rear fenders to kick it?
    1985 ATC250sx
    1984 ATC200s
    1984 ATC200x
    HONDAS FOR LIFE!!!

  5. #5
    Join Date
    Dec 2006
    Location
    St. John's Newfoundland
    --
    1,587
    Yep, I wouldn't let the reverse kick really bother me. I seen fellas tweak the kicker outwards to help clear cut rear fenders on other bikes. I would take it for my 85 project too.
    1986 ATC 250r
    1985 ATC 250r
    1985 X2 ATC 70's
    1985 XL 80

    If you have bought or sold with me please leave feedback.

  6. #6
    dksix's Avatar
    dksix is offline Just Too Addicted Arm chair racerJust too addicted
    Join Date
    Aug 2010
    Location
    North East Tennessee, USA
    --
    610
    I have an 85 350x with an 84 or 86 (I forget) CR250 engine in it. I got it this way, they hacked the lower fender off with a sawzall it looks like. Starting it is cramped for me even with most of the fender removed but I have big feet. You can see how much of the fender is removed in the pictures here http://www.3wheelerworld.com/showthr...DED&highlight= . Allot of it may be me just not used to kicking a stroke anymore. I rode it today and wasn't that bad to start.

  7. #7
    Join Date
    Nov 2006
    Location
    southern oregon
    --
    2,338
    '84 CR250 has the integrated atac so you would probably have to use the CR pipe which may need modified to fit .. no headlights.. a hacked fender.. custom engine mounts.. It would be fast, but you'd probably be happier in the end if you just fixed the atc engine. resale value would be much higher as well.
    2-stroke lover

  8. #8
    Join Date
    Jul 2009
    Location
    oregon
    --
    668
    or do something about revers kick, and im sure theres places that can do it for you. its been done and would be nice to have mass produces around 3ww.


    This is my trike.
    There are many like it, but this one is mine.
    My trike is my best friend.
    It is my life. I must master it, as I must master my life.
    Without me my trike is useless.
    Without my trike, I am useless.
    I must roost faster than my enemy who is trying to beat me to the finish.
    I must beat him before he beats me.
    Before God I swear this creed.
    My trike and myself are defenders of track.
    We are the masters of keeping quads the losers.
    So be it ... until there is no quad left.

  9. #9
    Join Date
    Jul 2005
    Location
    Ontario, Canada
    --
    457
    hmm well i thank yas for the input!! as i was looking around the net, noticed the 88 cr250 had a power valve, that would be soooo wicked!!!
    But yeah, im leaning toward doin it the right way lol came across a ct310 kit complete with crank, piston, jug and head!! its not free but its where i have wanted this heading!!!! that is skipping alot of messing around!! lol keep the bike a bike and the trike a trike i'm not in a jam anymore!!

    thanks again for all a your input!!
    Joe
    '85 ATC 250R
    FMF Fatty & Power Core
    Boyesen Rad Valve
    38 PWK A/S
    K&N w/PF (next purchase)
    LSR +4 Axcaliber axle
    LSR Duel row bearing carrier
    DuraBlue Anti-fade (to be installed)
    13/36 sprockets
    '85 ATC 250R
    Parts trike (maybe future build?)

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