Trouble with mercury 3cyl 2 stroke identification

p8ntman442

Recruit
Joined
Jun 26, 2011
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2
Hello, I'm trying to fix a motor for a relative. The problem, No spark. What I know:

1986 Ish Mercury
Deffinatly 3 cyl, 2 stroke. (40-50 hp ish guessing)
Serial number is clearly identifiable as 0B179837

The problem is there is a harness Blue, Brown, Black, with a plug, going to the front. Its cut.

There is a harness coming back from the quicksilver forward controls, Purple, Black, Grey, Tan. Its cut.

The flywheel/magneto has a pickup and ignition module under it. (those may be the wrong terms for boat parts) There are two yellow wires coming out of the module that are CUT at the module, nothing in the harness to connect to them.

The boat was purchased this way, previous owner said it ran great, but the motor was take apart.... Why would you take apart a perfectly good running motor?

I can't identify the motor by that serial number( I double checked the number). If I could do so and find a wiring diagram, I would be able to trouble shoot the electrical system.

Thank you so much in advance.
 
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