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Thread: Project : CR250 AF/ BH

  1. #1
    Member Hillz's Avatar
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    Project : CR250 AF/ BH

    not sure if any around here will care about a dirtbike build but here we go..

    so have finally decided what i am doing with the bits of a 2005 CRF450 i acquired a while back

    purchased a 1996 CR250 2 stroke motor to throw in it, CR250 AF / BH (alloy frame bush hack)

    first step will be to get a roller going so i can get it tied down down on the bench and work at a decent height

    2nd step make up the custom engine mounts and make sure exhaust & radiators have plenty of room

    i have pulled plenty of bikes down to nothing & rebuilt before, but this is my first infusion custom.. pretty excited

    will post up as progress is made...





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  2. #2
    Member Hillz's Avatar
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    & looking at the pictures now more closely i have already found my first problem..

    it is not a 2005 at all, seem i was mislead, it has to be 02 or 03 judging buy the tank & rad shrouds

    new first step is the check with Honda on exact Year lol

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  3. #3
    Member Water pig's Avatar
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    The 10th digit of the vin will tell you what year you have
    On another note that generation of 250 engine is sweet, if you find yourself needing a new barrel down the build, go for the 2001, direct bolt on and way better port position

    - - - Updated - - -

    I've got a mountain of spare plastics and odds and ends for this project if you find yourself needing anything let me know

  4. #4
    Member Hillz's Avatar
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    Quote Originally Posted by Water pig View Post
    The 10th digit of the vin will tell you what year you have
    On another note that generation of 250 engine is sweet, if you find yourself needing a new barrel down the build, go for the 2001, direct bolt on and way better port position

    - - - Updated - - -

    I've got a mountain of spare plastics and odds and ends for this project if you find yourself needing anything let me know

    few things i know i need that i was going order from honda is a rear axle, swingarm bolt and top subframe bolt. maybe a few linkage bolts but not real sure until i lace up the rear wheel on the weekend & get it all on the bench
    Hoonaholics Garage

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    Quote Originally Posted by Hillz View Post
    not sure if any around here will care about a dirtbike build but here we go..

    so have finally decided what i am doing with the bits of a 2005 CRF450 i acquired a while back

    purchased a 1996 CR250 2 stroke motor to throw in it, CR250 AF / BH (alloy frame bush hack)

    first step will be to get a roller going so i can get it tied down down on the bench and work at a decent height

    2nd step make up the custom engine mounts and make sure exhaust & radiators have plenty of room

    i have pulled plenty of bikes down to nothing & rebuilt before, but this is my first infusion custom.. pretty excited

    will post up as progress is made...





    +

    Will happily be the test pilot for this when its done
    “That’s so funny the last time I heard that I laughed so hard I fell off my dinosaur.”

  6. #6
    Member Water pig's Avatar
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    Quote Originally Posted by Hillz View Post
    few things i know i need that i was going order from honda is a rear axle, swingarm bolt and top subframe bolt. maybe a few linkage bolts but not real sure until i lace up the rear wheel on the weekend & get it all on the bench
    I'll check my shed in the morning I'm pretty sure I have at least some of that stuff

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    Why not just buy a later model Cr250 and get the newer generation frame? The electronic actuated engine works better offroad imho. Can't see the reason for this unless it was a 500 if that floats your boat. Reasons for the build Hillz

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    Member El Skitzo's Avatar
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    Any project is great to watch, looking forward to watching the progress

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    Member Hillz's Avatar
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    Quote Originally Posted by Marty MOOSE View Post
    Why not just buy a later model Cr250 and get the newer generation frame? The electronic actuated engine works better offroad imho. Can't see the reason for this unless it was a 500 if that floats your boat. Reasons for the build Hillz
    500 is useless for single trails & the old lady says i have to sell a bike to get another one & with people only buying bikes for cheap atm figured i would just build a dirtbike lol

    im not a fan of the electronic power valve models, i grew up riding dirtbikes in the 90's and the 92/01 motor floats my boat for nostalgic reasons
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  10. #10
    Member BLK'N'BLU's Avatar
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    I may get shot to pieces for this but here goes.
    https://www.ebay.com.au/itm/112270819849
    Pretty much a copy of a Japanese engine and parts readily available, and the Chinese are getting better and better year on year. I'm old enough to remember when people derided Jap crap, go figure
    Honda Blackbird, The gentleman's weapon of choice
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  11. #11
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    bit of cutting to be done, there is a conversion kit you can buy to do the job properly. however iam going to see if i can cut enough out to get the exhaust to clear. if not no harm done i have to cut that whole y section out anyway

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