4W69B spark plug

166oldboat

Cadet
Joined
Apr 26, 2009
Messages
20
What is the correct spark plug for the motor...it has 2 different ones in it right now a champion RJ12YC and a champion J4C....and what is the correct gap?
 

JB

Honorary Moderator Emeritus
Joined
Mar 25, 2001
Messages
45,907
Re: 4W69B spark plug

J4C gapped at .030", oldboat. The chart is wrong.
 

166oldboat

Cadet
Joined
Apr 26, 2009
Messages
20
Re: 4W69B spark plug

i didn't even look at boath plugs i just took the top one out and went and got 2 new ones...the RJ12YC....and when i took the bottom one out i saw that it was different....i guess they'll make good spares
 
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