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1986 9.9 Mercury Outboard Motor

I can't get any spark to my motor. I had some, started briefly, now I have no spark again. I have put in new spark plugs, and checked wiring many times, but still nothing. Can you help

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  • Anonymous Mar 30, 2014

    motor ran perfect last time out now won't start..getting fuel and spark...just had a switch box replaced

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Check plug wire first-- replace if bad. See if contact in plug cap is corroded. Use some Dielectric Contact Grease in the spark plug cap-- this will ensure good contact.

Also check kill wires that travel to tiller. They often get broken internally or get shorted out as they enter the housing engine.

These are the most obvious and easiest to fix. Your intermittent probem sounds like one of these issues (I used to have this same engine and had both problems)

Posted on May 17, 2009

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Posted on Jan 02, 2017

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