proper s/plugs for 1966 33 hp Johnson

kfa4303

Banned
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Sep 17, 2010
Messages
6,094
Hello all. Just wanted to know if anyone knows the correct modern s/plugs for a 1966 33hp Johnson (RXEL-14D). The manual says J4J, however it currently has Champion J6C plugs, which have worked in the past.
 

mstahl1171

Petty Officer 1st Class
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Mar 16, 2010
Messages
209
Re: proper s/plugs for 1966 33 hp Johnson

J4C Champions Gap .030...if you run at slow speeds alot...trolling...gap at .035...less carbon fowling with the larger gap
 

boobie

Supreme Mariner
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Nov 5, 2009
Messages
20,826
Re: proper s/plugs for 1966 33 hp Johnson

You should be able to use J6C's in that mtr with no probs at all gapped at .030".
 

JB

Honorary Moderator Emeritus
Joined
Mar 25, 2001
Messages
45,907
Re: proper s/plugs for 1966 33 hp Johnson

Use the J4Cs for normal use, J6Cs for extensive trolling. .030 for either.
 
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