what is the spark plug gap for a 1971 sporttwin<br />9.5 evinrude. ;)
S sterling66 Seaman Apprentice Joined May 21, 2002 Messages 47 May 26, 2002 #1 what is the spark plug gap for a 1971 sporttwin<br />9.5 evinrude.
A Allan19603hp Petty Officer 3rd Class Joined Nov 25, 2001 Messages 90 May 26, 2002 #2 Re: spark plugs Use a J6C spark plug .030 gap if you do low speed running alot.. If you are all high speed then you can use J4C with the same gap.<br /><br />Allan
Re: spark plugs Use a J6C spark plug .030 gap if you do low speed running alot.. If you are all high speed then you can use J4C with the same gap.<br /><br />Allan
