Reply To: Need help with later model Merc 25HP two stroke ignition system

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August 13, 2025 at 1:32 pm #298922
Don
Participant

    US Member

    Thanks Bill!  I did figure out that the stop wire has that same color code as OMC/ black with yellow tracer.  My brother inlaw disconnected the stop lead, got spark, then found that the stop lead had been melted/shorted to the block, so the engine is running again.  But, I am sure there will be more issues, he is a nice guy, but tends to wreck stuff fiddling around with it.

    Now that I look at a picture he sent me, looks like it is a 9.9hp, not a 25hp.   Looks like the serial number is:  DL 266900.

    I can email a picture of the engine if that will help, probably won’t post here due to size.

    Thanks buddy, hope all is OK.

    don