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Thread: RM 125 swap

  1. #1
    Join Date
    Oct 2002
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    26

    RM 125 swap

    Hi, Does anyone know if a RM 250 engine will swap with a 125 engine. I'm looking for a engine that will fit an 86 RM 125. Just wanting to find out what kind of options I got to work with. Thanks for any info. Sam

  2. #2
    Join Date
    Sep 2003
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    53
    I had an 83 RM125 and as I remember the 250's in that time frame were much bigger. I really don't think it will fit, if it does keep and eye on the welds because I don't think the frame will handle it (cracking), most 250 frames are heavier, depends on how hard you ride the bike I guess.
    Good Luck

    Kirk
    http://groups.msn.com/RoadRunnerOffRoadRacing/
    Just an oldtime desert racer. #1 125 in 1984 in D38 On a 84 Cagiva
    2005 CRF250R
    1996 Honda CR250
    1997 Honda CR80
    89 Cagiva 250WMX
    88 Cagiva 125WMX
    87 Cagiva 125WMX
    2-86 Cagiva 125WMX
    85 Cagiva 125WMX
    83 Honda 200X
    Previous bikes
    71 Honda SL100, 73 Suz TM250, 74 CR125 Honda Elsinore, 76 Suz RM125, 81 Suz RM125,
    82 Suz RM125, 83 Kaw KX125, 84 Cagiva WMX125, 85 KAW KX125

  3. #3
    Join Date
    Oct 2002
    --
    26
    I'll be staying with the 125 engine, another guy told me the same thing. Thanks, Sam

  4. #4
    Join Date
    Nov 2003
    --
    115
    smart move with some bending and welding it will go but then what you have is an over powered off ballance death trap lol. dont get me wrong I like speed but I like to know that my frame will hold up @ 80 or so you know lol

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