spark plug gap

BASSANGEL

Recruit
Joined
Jan 9, 2002
Messages
1
i have a Johnson 30 horse poered motor and nee to know the Gap for the plugs...HELP ANYBODY :
 

JB

Honorary Moderator Emeritus
Joined
Mar 25, 2001
Messages
45,907
Re: spark plug gap

Howdy Bassangel. The model and year are important, as Fouled Plug has indicated.<br /><br />One thing more you need to watch out for: Many older OMC manuals tell you to gap the plugs at .040. Sometime in the late '80s they put out a Service Bulletin changing all of those older engines to a .030 gap.<br /><br />This is just one of the thousand reasons you need to get a manual for your engine or let someone else, who has the manual, work on it for $70. an hour.<br /><br />Let us know the year and model #.<br /><br />Red sky at night. . .<br />JB :)
 
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