WHAT SPARK PLUG ARE BEST FOR THIS MOTOR
J j duke Recruit Joined Jul 23, 2003 Messages 4 Jul 12, 2004 #1 WHAT SPARK PLUG ARE BEST FOR THIS MOTOR
rickdb1boat Supreme Mariner Joined Jan 23, 2002 Messages 11,195 Jul 12, 2004 #2 Re: 1968 40 hp johnson Champion J4C gapped at .030, unless you do alot of trolling, then open up the gap to .035-.040
Re: 1968 40 hp johnson Champion J4C gapped at .030, unless you do alot of trolling, then open up the gap to .035-.040
