Mariner 30hp spark plugs.

[Don.]

Mariner 30hp 1985 se#689L323629. what spark plugs would you recommend
for this motor.n.g.k. or a.c. or champians.
Thanks Don.

 

[achris]

Re: Mariner 30hp spark plugs.

I only use NGK, and for your engine I'd use B7HS gapped to 0.024".

cheers,

Chris.......

 

[Don.]

Re: Mariner 30hp spark plugs.

Thanks Don.
What is the differents beteen a NGK B7HS and a NGK BR7HS.
Don.