no spark

rafael

Cadet
Joined
Jul 26, 2002
Messages
9
1997 125 mercury has no spark on any cylinder what test can i do to see where the problem might be<br />fuse ok key switch is ok
 

12Footer

Fleet Admiral
Joined
Mar 25, 2001
Messages
8,217
Re: no spark

remove the black wire with yellow stripe at the switchbox. try to start,understand that you cant shut the engine down,so disconnect the fuel line, and spray a few squirts of mixed fuel directly into the carbs, and try it. It it tries to start, something is grounding-out that black/yellow wire..Either the ignition switch,lanyard switch, mercury tilt switch,or short inside the wire harness itself,involving that black wire. <br />If still no fire, you'll need to get the switchbox and/or trigger tested.
 
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