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Thread: 81-84 atc 250r motor question?

  1. #1
    Join Date
    Sep 2003
    Location
    Elizabethtown PA
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    1,581

    81-84 atc 250r motor question?

    does anybody know if a 81-82 atc 250r motor will fit a 83 250r? Or will just the bottom end work.

    my buddy just got a 83 with no fifth gear. i found a couple deals on 82 motors on ebay.

    thank
    JASON LISKEY

    1985 atc 250r ---- finsh line axle,.fmf exhaust and rictor privateer silencer, prm grab bar.
    2008 KTM 525xc quad ----- HMF exhaust, HRE chromoly stem,
    86 trx 250r --- with after market chromoly frame and everything else done to it
    01 400ex --- with 86 trx 250r motor
    87 250x + 93 300ex both 350x powered
    2 = 86 atc 350x's
    86 atc 250r
    83 atc 185s --- from retired guy not ridden since 87
    Bandito framed 110 with 85 motor and yellow us90 fenders + tank

  2. #2
    Quote Originally Posted by jason85atc250r View Post
    does anybody know if a 81-82 atc 250r motor will fit a 83 250r? Or will just the bottom end work.

    my buddy just got a 83 with no fifth gear. i found a couple deals on 82 motors on ebay.

    thank
    You will have to use the shifter shaft from your 83-84 other than that it will work...
    1985 350x
    1985 350x
    1985 250r
    200 auto x
    1984 250r
    1982 250r
    85 Tecate
    86 Tri Z
    85 TRI Z
    98Wolverine
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    I need a 86 250r Headlight lens!!!! Hook me up!!!!









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  3. #3
    Join Date
    Jan 2009
    Location
    Escondido,CA.
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    111
    Yes it will fit like a glove. 81-84 are the same except the drive+suspension.

  4. #4
    Join Date
    Sep 2009
    Location
    Suring Wisconsin
    --
    967
    I have a 83-84 motor in my 82 250r. The only thing you notice from the out side is the later ones are black and not red. I beleive the 83-84's have bigger porting.

  5. #5
    Join Date
    Oct 2002
    Location
    Northeast
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    17,457
    Great news!! They've been waiting 2 years for this info
    All our government does is distract us while they steal from us, misspend our tax $ and ruin our country

  6. #6
    Join Date
    Jul 2009
    Location
    South Florida
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    Wow

    Quote Originally Posted by Dirtcrasher View Post
    Great news!! They've been waiting 2 years for this info
    about fell out of my chair dirtcrasher
    78 atc 90/180cc Dickson Full Suspension
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    77 atc 90 Dickson Full Suspension
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  7. #7
    Join Date
    Jan 2009
    Location
    Escondido,CA.
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    111

    Talking

    Time for a bong load!

  8. #8
    Join Date
    Jan 2009
    Location
    Escondido,CA.
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    111
    I need to talk to someone who has built a 1984 250R. I had to do so much research just to figure out that my front forks are from a 85'. The bike is a 1982. ??

  9. #9
    Join Date
    Jan 2009
    Location
    Escondido,CA.
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    111
    They need to remanufacture some DG COOL heads for the old school trikes!!
    Can't they just make a mold or something?

  10. #10
    Join Date
    Oct 2004
    Location
    Anaheim
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    1,270
    you could have to make a cast, the problem is you have to get a few in on it, and when I say few I mean around 50 units. I have looked into doing it through my own company and its going to be pretty expensive to do...
    86 ATC 500R the duner..
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  11. #11
    Join Date
    Jan 2009
    Location
    Escondido,CA.
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    111
    shortline10's I can tell that you ride your trike because your suspension in the rear is low for better control. Low in the back high in the front. I think the 86' R is too tall.

  12. #12
    Join Date
    Jan 2009
    Location
    Escondido,CA.
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    111
    TRUE. Damn I love those things. I would probably buy a trike just because it's on there!!

  13. #13
    Join Date
    Jan 2009
    Location
    Escondido,CA.
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    111
    I heard In the grapevine that HONDA used to have a water cooled head for the 81-84 250R's. That would be nice.

  14. #14
    Join Date
    Aug 2002
    Location
    NY
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    2,652
    Quote Originally Posted by trikerooster View Post
    I heard In the grapevine that HONDA used to have a water cooled head for the 81-84 250R's. That would be nice.
    Post a bunch of pics of your bike.I want to see it closer with the water cooled parts installed.Thanks

  15. #15
    Join Date
    Sep 2005
    Location
    Lipetsk, Russia
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    2,824
    Quote Originally Posted by mike from long island View Post
    Post a bunch of pics of your bike.I want to see it closer with the water cooled parts installed.Thanks
    Am I missing something? He didn't say he had them, he said he heard that Honda once made some...
    I'm back in the USSR...

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