Wiring Diagram Mercury 402 Outboard Boat Motor

Here is outboard boat motor wiring diagram for Mercury 402. Mercury 402 boat motor has 40 hp powers, electric start, and remote controls. In this black white wiring diagram, a connection form engine harness connect to starter motor, starter solenoid, choke solenoid, coil, rectifier, trigger plate, coil, and tilt stop switch. External harness connects to 12 volt battery, neutral start interlock switch, tachometer connector, key switch, and remote control. Here full mercury boat motor wiring diagram.

mercury 402 outboard motor wiring diagram

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Comments

  1. says

    GENTLEMEN, I AM IN NEED F A SCHEMATIC FOR MY 40 HP MERCURY OUTBOARD 1978 THAT HAS STATOR, TRIGGER,ALTERNATOR AND DOES NOT NEED A BATTERY TO START ENGINE. I HAVE A MERCURY SERVICE MANUAL 90-42794-1 690 BUT IT DOES NOT CONTAIN THE EXACT SCHEMATIC FOR MY SERIAL NUMBER 5367085. SURE WOULD LIKE TO HAVE ONE. GTUNNEYK@AOL.COM 2555 BROWN CHURCH ROAD IN CLINITON,NC 28328 PHONE 910 596 0216

  2. Alan Burton says

    Dear Gene, like you I require a wiring schematic for the same engine. Did you manage to locate one, if so would it be possible to email me a copy please. Regards, Alan.

  3. jason says

    HAVE 1979 402 MERC.MINT. EXCEPT THE “EVER SO NEEDED WIREING FROM HARNESS AND SUCH. PRIOR OWNER WAS NOT A GREAT MECHANIC AND HAVING A HARD TIME TRACING COLORS.WANT TO STRI[P BACK SOME WIRES AND CONNECT, THEN DETERMINE WHAT TO PURCHASE. ANYONONE HAVE BOOK? OR HELP?THANKS

  4. lou crouch says

    Sirs;
    I have a 2006 mercury 60 hp 4 stroke o.b. motor and want to install a tack,is the motor prewired ? is there a wiring diagram available?

  5. amir says

    Hi
    I have information of small motor model 4.5 and plaese give me dubi service center adress.
    tanks

  6. wayne gulliver says

    Jo,
    Would it be posible to get a copy of the wiring diagram for the 402 Mercury outboard.

  7. jill says

    my husband is looking for a wiring diagram for his 50 hp mercury outboard engine. It sat idle for 2 years and started 2 days ago and now nothing. It doesn’t even turn over. We want to use it and can’t. Where do we go?

  8. Dave Manevich says

    do you still need wireing diagram for merc 402 40hp 1978 electric start
    i have it in my manual at back of book I can scan and email to you if you still need it

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