which spark plugs

joho5

Chief Petty Officer
Joined
Aug 14, 2008
Messages
456
1974 Chrysler 15hp

getting new ones, and dont have the manual to see what it calls for.

The ones that were in it were J6c's...I know thats usually a bit hotter plug for these motors but the guy that had the motor before me did alot of trolling on a sail boat I believe.

thanks

Matt
 

Frank Acampora

Supreme Mariner
Joined
Jan 19, 2007
Messages
12,004
Re: which spark plugs

If you can find them, Clymers calls for Champion L4J. Equivalent plugs are: NGK B8S, AC M42FF, Autolite 2635.
 
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