Spark Plugs- 1967 6hp Evinrude

[matt-fortmyers]

I'm replacing the plugs on a 1967 6hp Evinrude. I purchased it used, and it came with plugs that say "Champion 5843." Are these the correct plugs? Should I purchase an identical pair to replace them? I'm a total novice at this so any advice is appreciated. I could use advice on setting the gaps, too. Can I purchase the plug at most marine supply stores?

Best,
Matt

[oldcatamount]

Champion J6C, or, NGK plugs B6S are the right plugs for your motor gapped at .030.

[JB]

Only Champion J6C or J4C, gapped at .030", as old cat says. The J4C is better for extended high speed operation, the J6C for all-round operation.

[matt-fortmyers]

Thanks! Got the plugs and they work well.