Spark Plug Gap and Plug Type

[corapeake]

1978 Johnson 70 HP
Model : 70EL78C
Serial : J4934075

What is the spark plug gap from this motor and what kind of spark should I be using with this engine

Corapeake

 

[jtexas]

Re: Spark Plug Gap and Plug Type

nothing but Champion QL77JC4, gapped at .030 but if you troll a lot, .040 would help cut back on carbon build up.