1996 johnson 3HP spark plug gap

[waterfun]

I have been given a 1996 Johnson seahorse 3hp (model: j3revc) from my grandfather (it was just sitting in his barn, not sure how long). The engine runs, but seems a little sluggish, so I want to change the spark plugs, clean carb? but I do not know what the gap should be for the plugs, could someone please help?

Thanks

 

[tashasdaddy]

Re: 1996 johnson 3HP spark plug gap

,030, http://www.boatsetup.com/Spark Plug Chart 2007 BRP.pdf

 

[lyncraft_mechanic]

Re: 1996 johnson 3HP spark plug gap

your motor runs champion QL86C or QL77Jc4 spark plugs and they should be gapped at .30

 

[JB]

Re: 1996 johnson 3HP spark plug gap

As TD says, .030", NOT .30"

Over the years OMC specified .040", then .030". If you have any trouble with the plugs fouling try .035" or .040". The "spec" setting is .030".