Does anyone have a preference of spark plugs?
Z zeb272 Cadet Joined Jul 3, 2010 Messages 8 Jul 5, 2010 #1 Does anyone have a preference of spark plugs?
Vic.S Rear Admiral Joined May 4, 2004 Messages 4,718 Jul 5, 2010 #2 Re: 1966 johnson 6hp spark plugs? The currently recommended plugs are Champion J6C gapped at 0.030"
royal0014 Master Chief Petty Officer Joined May 6, 2010 Messages 874 Jul 5, 2010 #3 Re: 1966 johnson 6hp spark plugs? Champion, no question. IMHO, anything else is second best.
Vic.S Rear Admiral Joined May 4, 2004 Messages 4,718 Jul 5, 2010 #4 Re: 1966 johnson 6hp spark plugs? Champion, no question. IMHO, anything else is second best. Click to expand... I have a set of Champions and a set of NGK. for my 6hp ... Can't tell any difference. Back in 1966 the recommended plugs for the 6hp were Champion J4J , Autolite A21X or AC M42K
Re: 1966 johnson 6hp spark plugs? Champion, no question. IMHO, anything else is second best. Click to expand... I have a set of Champions and a set of NGK. for my 6hp ... Can't tell any difference. Back in 1966 the recommended plugs for the 6hp were Champion J4J , Autolite A21X or AC M42K
