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  1. H

    Mercury 850 thunderbolt ignition switch wiring

    What do you mean the mercury switch side ?
  2. H

    Mercury 850 thunderbolt ignition switch wiring

    So the black wire don't go to the switch and the kill switch I can wire it inline with the white to kill that power when lanyard pulled? Leave the two m terminals empty ?
  3. H

    Mercury 850 thunderbolt ignition switch wiring

    So where would black go and where would the 2 kill wires go? Would they go to the 2 ms?
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    Mercury 850 thunderbolt ignition switch wiring

    And the tan wire "E" goes down the wire harness but don't attach to engine wire harness which is weird so I'm assuming that would be kinda a universal plug there's probably another engine that uses the tan wire so I can just cut that it's unused correct ? Sorry not trying to sound dumb just the...
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    Mercury 850 thunderbolt ignition switch wiring

    So would the black wire possibly go to m one m is a magneto that would be obsolete I assume and the other m Is a kill key off so would the ground go to that ?
  6. H

    Mercury 850 thunderbolt ignition switch wiring

    I have a mercury 850 serial 4233250 I changed the shifter control box to a new style without the ignition switch so I want to wore a new ignition switch to the the steering wheel console new switch has the letters S M B M I C on the back of switch which wires would go where I was trying to...
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    Tilt trim 70s mercury 850

    Would this style work on a 70s merc 850 thunderbolt ?
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    70s merc 850 85 hp mercontroller

    I have a 85 hp merc 850 with the original mercontrol shifter box I want to upgrade to a new control box keeping the side mount does anyone know which one would work bot worried about the wiring I should be able to wire anything to work more worried about the cables and such being a fit any help...
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    1988 force 50hp

    I had this engine bored 0.20 over thing runs great I was curious what's some little things I could do to get some more power out of it it's on a 17ft blue fin bass dominator with me and the wife it goes about 28 mph on the garmin fish finder GPS not sure the prop that's on it pretty sure it's...
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    1989 50 HP Force One cylinder not firing

    Can you post a picture of your cdi box and how it's wired?
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    88 force 50hp spark on only one cylinder

    I have a 1988 us marine force 50hp I have 2 coils one on top one of bottom the bottom coil is getting spark no spark on the top coil the bottom is a cdmodule the top is a cdi box and coil it was recently put on by other owner no spark coming from it i replaced the stator and the trigger of I...
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