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Thread: Both coils fire when White wire is touched tp ground. MC2 , '89 GSXR 750

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  1. #1

    Default Both coils fire when White wire is touched tp ground. MC2 , '89 GSXR 750

    I bought an MC2, hooked it up and cranked it and nothing. I then disconnected the White wire to see if the coil sparked and it did. I then tried the Green wire and it also sparked. I then had 1 plug wire from each coil spaced 1/2" away from ground and both coils fired when I tried the Green wire to ground. Isn't only one coil supposed to fire? I used to have an MC3 for about 10 years. It finally gave out. I then ran it with the stock ignition til I got this box, so I know the stock ignition works.

  2. #2

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    Ok, now I disconnected the green wire, cranked it, and weird thing, the bike fired right up! The Blue coil wire is not cut, so it should be set for 4 cyl, right? C'MON, PLEASE RESPOND!!!

  3. #3

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    The MC2 has two channels one for cylinders 1 and 4, and the other for cylinders 2 and 3. If one of the channels is not connected you should only have spark on one channel.

  4. #4

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    After checking the 1423 pattern, i might have had them mixed up. Now, how can i use the mc2 if i hook up to the pickup coil, if it only has one magnet?

  5. #5

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    What triggers are you using on your engine.

  6. #6
    Join Date
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    Default Both coils fire when White wire is touched tp ground MC2 89 GSXR 750

    When shooting from the bench, do you keep both eyes open or close your weak eye? Does magnification make a difference?

  7. #7

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    Quote Originally Posted by Michaelblign View Post
    When shooting from the bench, do you keep both eyes open or close your weak eye? Does magnification make a difference?
    Are you even on the correct website?????

  8. #8

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    My stock ignitor went out so i wanted to see if i could trigger the box off of the stock pickup coil.

  9. #9

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    there is no way to use the stock trigger to run the MC2.

  10. #10

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    So what msd trigger can i use?

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