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Thread: 1985 rm 250 nothing but heart ach

  1. #1
    Join Date
    Jan 2009
    Location
    illinois
    --
    37

    1985 rm 250 nothing but heart ach

    ok let me give as complete as discription as i can.
    it is an rm 250 but it has had diffrent parts put on by previous owners.
    i beleave the stator and cdi are from a 1979 the color on the wires dont match from stator to cdi but i was able to get it started for a while, the the stator wire at the coil broke no way to fix so i bought a new stator now i cant get it to start. unshure if i have wires going to the right cdi wires as they are diffrent color. i do get like 30 ish volts to the ignition coil, but no spark. on the original stator it has a wire conecting two coils then leads to cdi. another wire go to coils to cdi the the othere coil wire goes to ground then to cdi.
    on the new coil one wire conects the two coils and at the other end of coils the wires lead to the cdi with neither of them being grounded first.

    so i guess my question is is 30 ish volts to ignition coil enough that it should spark cuz coil test good as per ohm.
    and is the cdi for the 85 in some way groundig the stator wire which the 79 grounds at the stator.
    i think what im gonna do is just ground the stator wire which corsponds to the old one, and cross my fingers , but i will wait for any responce for about 6 hours.
    and if im being an idiot please dont hesatate to tell me cuz all i really care about is getting this bike going and yes i know i should just replace the whole electrical but allas im poor!

  2. #2
    Join Date
    Dec 2004
    Location
    Baltimore, MD
    --
    6,088
    You wouldn't happen to have a repair manual would you? If you spend any money it should be on a repair manual. The manual can answer alot of questions for you that people on here may not know. You have the enthusiasm to fix the bike, it's just tough on a tight budget and without a manual. I wish I had a manual to help you, cause you seem pretty sincere to try and get this bike up and running. I think you are just going to have to take your time until you can get the correct repair parts. You might check ebay or a motorcycle parts place for used parts. Hang in there and try to be patient and best of luck.
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  3. #3
    Join Date
    Jan 2009
    Location
    illinois
    --
    37
    ya i allready wasted money on the manual and two coils on ebay which i think i allreay blew. also bought a cdi on ebay which dosnt match the wiring on the stator that i also bought from ebay

  4. #4
    Join Date
    Nov 2002
    Location
    Chezzetcook Nova Scotia
    --
    1,838
    Pics man. We need pics.
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