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Thread: help with cdi

  1. #1
    Join Date
    Aug 2013
    Location
    florida
    --
    9

    help with cdi

    ok i have a 85 250 big red i have been using a cdi of a 200 trx i switched the plug from the round one to the 2 square one , my problem is i have bought 3 cdis off ebay used and no of them work on my bike the all said came from a running bike , 86 87 same plug . i thought the 85 was basicly the same is there something in the electric thats diff or did i get 3 bad cdis ? thanks for any info .

  2. #2
    Join Date
    Aug 2008
    Location
    MN
    --
    3,263
    The 85 is a one off year for the CDI... Or so i have been told. It has electronic advance built in. I haven't ever worked on an 86 or 87 but there has been some other posts on here from others that said they had the same problem trying to swap on a later year CDI.
    ---------------------------------------------------------
    1984 Honda ATC200ES "Big Red"
    1982 ATC200E "Hondie"
    1988 TRX300FW "Project Quad" Still in progress....

  3. #3
    Join Date
    Aug 2013
    Location
    florida
    --
    9
    i thought the electrical was the same just a diff style plug ?

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