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1983 250cm

  1. Electrical Discussion
    Hi all, I have an '83 CM250 with weak spark and need a new ignition coil. The current coil secondary resistance is measuring 13.7 K Ohms and the primary is measuring 2.5 ohms. I have a manual for the bike which says the secondary should be 3.7 K ohms to 4.5 K ohms and the primary should be 1.7...
  2. Electrical Discussion
    Thanks for all the great tips on this site, ive posted also under electrical today, but hope starting a new thread might add someone who has a few answers...This seems to be what I have going, first project bike, I 'm putting a 1991 nighthawk 250cb engine into a 1983 250cm frame. Plan to use the...
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