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Thread: will cr250 motor bolt in 86 atc 250r

  1. 02-07-2004, 11:06 PM #1
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    will cr250 motor bolt in 86 atc 250r

    i have a 86 atc 250r that im going to be putting a 91cr motor in.
    i was just wondering if it will just bolt rite in or will i have to
    make any modifications
    3-85 ATC 70
    86 ATC 250R
    86 WETBIKE
    01 KX250
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  2. 02-08-2004, 01:39 AM #2
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    no it will not just bolt in,,,,,,,, transmission cases are totally different
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  3. 02-09-2004, 11:22 AM #3
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    I asked this question not too long ago. Another thing to note is the problem with the rear kicker on the CR.
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  4. 02-09-2004, 01:21 PM #4
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    not sure who it is, but there is a guy on the site who did it. look at ppl's sig's and you'll be aable to find out. talk to him, he might know how to do it.
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  5. 02-09-2004, 05:16 PM #5
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    Red Rider is offline Wires, Hoses, & Digital Wizardry. Got the holeshot
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    Anything is possible. If people can overcome the rearward kickstarting problem of a CR500 engine stuffed into an ATC250, then there is certainly a way to do a CR250 engine.
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  6. 02-09-2004, 06:31 PM #6
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    Yes, anything is possible, I just put a kick-starter from a QT50s moped on my zinger,and its freaking great .I had to cut my fenders up,but cool anyway. As long as you have the know-how, and the resources, it is possible.I will try to post pics of that kick start.
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  7. 02-09-2004, 07:15 PM #7
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    how do the side covers match up?? Can you put the workings for the ATC inside the CR, and put the ATC/TRX cover on??

    Thats how the guy did my YZ motor in my Tri Z.. just put a Tri Z cover and kicker on, so it would still kick forward.
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  8. 02-09-2004, 07:30 PM #8
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    Chainsaw, good idea. Unfortunately, unlike a YTZ engine, which is based on the YZ's, the ATC/CR engines share few similarities.
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  9. 02-09-2004, 07:37 PM #9
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    well.. its the thought that counts.. lol.
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  10. 02-09-2004, 09:41 PM #10
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    thanks

    thanks for the reply guys, im not concerned to much about the kick start i was wondering about the rear mount. if any mods will need to be done
    thanks again
    max
    ill let you guys know how it runs.
    3-85 ATC 70
    86 ATC 250R
    86 WETBIKE
    01 KX250
    2011 KAW SXR800- 35YR EDITION
    05 HERITAGE/SPRINGER/SOFTTAIL
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  11. 05-18-2022, 09:19 PM #11
    bguhfg
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    Quote Originally Posted by max View Post
    thanks for the reply guys, im not concerned to much about the kick start i was wondering about the rear mount. if any mods will need to be done
    thanks again
    max
    ill let you guys know how it runs.
    So this post is older than I am and i dont even think you will respond. But im thinking about doing this. How did it go for you?
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