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  1. S

    Optimax coils

    Thanks man. I had a duel coil driver for #4 and #1 go bad .. so after swapping drivers around to diagnose I bought a new one .. all was good for a few trips then it started cutting out randomly and then the coil driver for #4 and #1 went out again. because of swapping out the new one was on a...
  2. S

    Optimax coils

    Anyone know how to properly test 2004 150 hp optimax coils? ser no ot862351 I want to bench test them best I can before install. thanks guys
  3. S

    No power past 4000 RPMs

    Just a shot in the dark here but make sure all plugs are firing before anything else then from there I be looking at the carb. main jet(s)
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    2004 optimax 150 no fire on #4

    Ok so Just to put a close to this .. We swapped the drivers today and yes that driver is bad. I have one ordered.
  5. S

    2004 optimax 150 no fire on #4

    ok found a diagram anyone know if a dule coil driver can be bad on one side only? i cant swap it unless i pull the coil plate
  6. S

    2004 optimax 150 no fire on #4

    Anyone know where I can find a diagram?
  7. S

    2004 optimax 150 no fire on #4

    I have searched and searched and so far im not finding it . There are 3 wires on the plug that goes into the coil. Black is ground and I tested it where it goes to the block. red/yellow stripe and green /yellow stripe . I dont have a diagram . the red /yellow is on all of them so im guessing...
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    2004 optimax 150 no fire on #4

    I just bought this boat and did a compression test before purchase but failed to realize it was down on power . Come to find out it has no fire on #4 . I switched #4 coil to #6 for testing . Coil , spark pug, and plug wire tested good. Im not getting and power to that coil. Any ideas...
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