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Thread: cr125 into a 200x????? need pics!!!!!!

  1. #1
    Join Date
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    cr125 into a 200x????? need pics!!!!!!

    will a cr 125 bolt into a 85 200x frame.will it be fasster and better then the 200x motor? anyone got pics of this? thanks in advance.
    1974 atc 90 project underway cuzzztom

    1985 atc 110 for sale

    84 200s all original got off the first and only owner
    new carb
    maybe putting my 200x cam in it but not sure

    old trike
    1985 200x
    12.1 piston
    oil cooler kit
    white bors cam
    super trapp exhaust
    uni clamp on air filter
    350x front end

  2. #2
    mart is offline *CERTIFIED* Mad Scientist Arm chair racerAt the back of the pack
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    gday mate yes im sure you can fit a cr125 in an 85 frame.my old boy and uncle did this to 2 83 200x's back in the 80's when they raced.we have a few old videos of them racing they were in the 200x class and they left the 200x's for dead,my uncle even said sometimes he would run his in the 250 class and usually come in around 3rd to 4th position so yes it is worth doing 4sure. later mate oh yeah and on that same video its got 1 of the court cases that were held over the banning of three wheelers.its got a guy from the cpsc telling the judge how many people the trikes have injured and killed since they came out. wink

  3. #3
    Join Date
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    did the motor bolt in?
    1974 atc 90 project underway cuzzztom

    1985 atc 110 for sale

    84 200s all original got off the first and only owner
    new carb
    maybe putting my 200x cam in it but not sure

    old trike
    1985 200x
    12.1 piston
    oil cooler kit
    white bors cam
    super trapp exhaust
    uni clamp on air filter
    350x front end

  4. #4
    Join Date
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    I can tell you that its not going to bolt in, you will need to build some motor mounts to fit. Also I think the biggest thing would be fitting the pipe in there, I am sure it would be pretty good though, I own a yt175 and personally I would just rather have a 4 stroke, It dont seem to have the power that I want.
    '04 450r, hr +3 stroker, s2 hotcam
    '84 Honda 200x
    slow restro


    Previous rides 82 Yamaha yt175, 85 Yamaha 225DR, 84 Honda 200M, Ski-doo Olympic 340

  5. #5
    84250r is offline Clean enough to eat a potpie off of Teaching quads a lesson
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    I was going to do that transplant,but fell into other things. That would be a killer trike. Light and quick!
    R.I.P Raven

    2006 Yamaha Banshee Special Edition
    1996 Honda CBR 600 F3

  6. #6
    Join Date
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    anyone got any other information on this swap?
    1974 atc 90 project underway cuzzztom

    1985 atc 110 for sale

    84 200s all original got off the first and only owner
    new carb
    maybe putting my 200x cam in it but not sure

    old trike
    1985 200x
    12.1 piston
    oil cooler kit
    white bors cam
    super trapp exhaust
    uni clamp on air filter
    350x front end

  7. #7
    HaggLE is offline At The Back Of The Pack Arm chair racerAt the back of the pack
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    I am the son of the uncle that Mart is talking about.
    I know this post was from a while ago but who cares, its a good topic...
    I spoke to dad about it and he says that it wasnt too hard. You have to cut the whole front down tube out and remanufacture it further forward. This is to allow for the pipe. The radiator is easy, just mount it to one side. But you will definately not going to fit any off the shelf pipes to the trike without modification. The top back mount is pretty much in the right spot, just line the chain up and modify the bracket. The easiest way to line the chain up is measure from the centre of the case to the sprocket on the 200x motpr and then the same for the cr125 motor. Do the mathamatics and move the motor accordingly.

    Should end up with the worlds best trike.

    Good luck if you are still considering doing it.

  8. #8
    Join Date
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    Here's a couple pictures I found while browsing the web one day.

    I would like to do this someday too. I think a nice 86 roller would be great for a newer 125 engine.
    Attached Thumbnails Attached Thumbnails 2 Stroke 200X.jpg   2 Stroke 200x 2.jpg  
    2007 YAMAHA YTZ450 went to a great home RIP Sam


  9. #9
    Join Date
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    Delaware
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    Since we are on this subject...had anybody on this forum ever put in a shelved down 250r 200cc motor or a MTX200R motor into a 200x frame trying to make a replica 200r factory racer ?also you can use this page as a reference it has a couple picture with 200x fames with 2stroke motors in them . http://www.3wheelerworld.com/race.shtml
    Attached Thumbnails Attached Thumbnails dunlap200xr85.jpg   atc200r.jpg  

  10. #10
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    Quote Originally Posted by HaggLE
    I am the son of the uncle that Mart is talking about.
    I know this post was from a while ago but who cares, its a good topic...
    I spoke to dad about it and he says that it wasnt too hard. You have to cut the whole front down tube out and remanufacture it further forward. This is to allow for the pipe. The radiator is easy, just mount it to one side. But you will definately not going to fit any off the shelf pipes to the trike without modification. The top back mount is pretty much in the right spot, just line the chain up and modify the bracket. The easiest way to line the chain up is measure from the centre of the case to the sprocket on the 200x motpr and then the same for the cr125 motor. Do the mathamatics and move the motor accordingly.

    Should end up with the worlds best trike.

    Good luck if you are still considering doing it.
    No offence ment here but I have to laugh my butt off everytime someone says this is easy. Frame mods should only be done by people that really know what they are doing and most don't. Even mounting the radiator would be a challenge above your average wrenching skills. It may be easy to some but it's out of reach for most to do it right.
    '02 Honda 416ex - A seasoned blend of 11 herbs and spices
    '04 Honda Recon - The yard machine and snow plow
    '88 Honda CR250R - Another chapter in my torrid all terrain affair

  11. #11
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    No offence ment here but I have to laugh my butt off everytime someone says this is easy. Frame mods should only be done by people that really know what they are doing and most don't. Even mounting the radiator would be a challenge above your average wrenching skills. It may be easy to some but it's out of reach for most to do it right.
    Agreed, I'm pretty handy but I'd have to think twice before I cut the frame of my bike. Best bet for someone trying this project is to get a spare frame and use that as a guina pig for the swap.
    My Feedback 85 TECATE 500 08 Honda 450R

  12. #12
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    Along the same lines, I wouldn't think anyone would want to use the 83-85 200x frame anyhow(without major gussets) as they were known for being weak anyhow.
    2007 YAMAHA YTZ450 went to a great home RIP Sam


  13. #13
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    Possibly but most CR conversions I've seen have been the 85 model and not the 86/87. The CR motor would be lighter and not put as much stress on the frame.
    My Feedback 85 TECATE 500 08 Honda 450R

  14. #14
    HaggLE is offline At The Back Of The Pack Arm chair racerAt the back of the pack
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    I say its easy with the assumption that you can use a welder and a grinder.
    We are making trikes over here, usually from bikes but you still have to make triple clamps and swing arms etc..

    The reason that dad made these trikes was because 250r's were only new and a little more pricey plus i think he had his 200x from before the r's were out.

  15. #15
    KASEY's Avatar
    KASEY is offline weee weeee weeeeeeeeeee ! ! ! The day begins with 3WW
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    i think he had his 200x from before the r's were out.
    ACTUALLY 250R'S CAME OUT IN 81 thats years before the 200x,,,

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