Help! need 1985 mercury 120Hp I/O wiring diagram

85Cimmaron

Recruit
Joined
Jun 12, 2011
Messages
3
Need 1985 mercury 120HP I/O wiring diagram to troubleshoot. Won't start for the first time. Thanks!!
 

Bt Doctur

Supreme Mariner
Joined
Aug 29, 2004
Messages
19,093
Re: Help! need 1985 mercury 120Hp I/O wiring diagram

What does that mean exactly. "wont start"
turn over
actually run
does nothing, not even click
battery dead
no power to coil
man overboard switch activated
shift interlock activated
 

85Cimmaron

Recruit
Joined
Jun 12, 2011
Messages
3
Re: Help! need 1985 mercury 120Hp I/O wiring diagram

Well, the motor will turn over, there's power to the coil, and the carb has gas. New spark plugs, distributor cap, points and rotor last spring fixed the same issue, don't want to replace all that again this year. any thoughts? Thanks!
 
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