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Author	Topic:   Johnson 40hp
John Ki	posted 08-27-2007 01:33 PM ET (US)         I have a Johnson model no. RK250 S/N 2341730 with electric shift. I believe this to be a 40HP engine. Is this correct? The engine will start but then dies. I believe the dying is caused by lack of fuel. At any rae, I want to put in new spark plugs. What brand, heat range, and gap should they be?
macfam	posted 08-28-2007 06:16 PM ET (US)             John, I don't know what year you're referring to, but I have a 2000 Johnson 40 hp. Here is the plug info: http://www.championsparkplugs.com/results_appOther. asp?otherMotiveID=12531&mfid=2
Tohsgib	posted 08-29-2007 11:40 AM ET (US)             His engine is very old to have electric shift in a 40hp(1960's).

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