What spark plug

L

longshot 1

Cadet
Joined
Apr 27, 2006
Messages
27
I have a 1972 4 HP Evinrude Yachtwin and I am wondering what spark plug should it have? When I bought the outboard it had a RJ12 C this is at the top of the heat range.
 
Last edited:
CATransplant

CATransplant

Admiral
Joined
Feb 26, 2005
Messages
6,319
Re: What spark plug

Way too hot a heat range for that outboard. J6C is the right plug for that one.
 
L

longshot 1

Cadet
Joined
Apr 27, 2006
Messages
27
Re: What spark plug

Thanks for the reply. I thought it was way to hot so I will get the J6C thanks.
 
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