sea king - need help on spark plugs

[rick54]

Had my sea king 10 hp outboard motor worked on , thinking spark plug is wrong. Serial no#57x20975 Model # VWB 52110

Can anyone tell me the right one? Think my year is 1975 but not sure.

 

[alangf]

Re: sea king - need help on spark plugs

I think that engine originally called for a Champion J6J but the J4J was said to be a better starting plug for warm weather applications. Those numbers have been superceded but can be looked up.

 

[steelespike]

Re: sea king - need help on spark plugs

Plug is an L4J I think a slightly different reach than the J4J. new number may be L4C.
set at ..030.