35 johnson and spark plug help

huntingtheworld

Petty Officer 1st Class
Joined
Jun 13, 2010
Messages
254
so i few mounts ago i pulled out a l78v out if a 79 johnson 35 hp.It was fauling plugs at low speeds or idel.Why would someone put that in a boatmotor or what is that plug for?I know its the wrong plug but just wondering why?I have not had a chance to take it out since it brokedown last but any input?:embarassed:
 
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