1990-90hp merc outboard

Joined
Sep 4, 2012
Messages
7
my engine stalled in reverse have no spark, have continuity at neutral safety switch,never use saftey shut off on my commander 200 switch box . can i disconnect switch box & jump motor ? then i would know if it is switch box problem or motor any ideas frank
 

Chris1956

Supreme Mariner
Joined
Mar 25, 2004
Messages
29,029
Re: 1990-90hp merc outboard

Disconnect black/yellow wire at the switchbox(s) and see if spark returns. If so, look to ign switch or lanyard switch for issues. Black/yellow wire is grounded to kill spark.
 

Chris1956

Supreme Mariner
Joined
Mar 25, 2004
Messages
29,029
Re: 1990-90hp merc outboard

BTW, Switchbox(s) are mounted on side of engine block. If you have an inline six there will be two. If inline 4 motor there is only one switchbox.
 
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