Don't know for certain about yours but many outboards can optionally connect
to gauges at the dash. That would be my first guess.

"Sparky" wrote in message
...
Hi folks!

I just bought a boat with a mariner 30hp outboard and I can't find a
manual for it anywhere.

Specifically, on the front of the motor near the choke and whatnot there
is a 1" round threaded cap covering some sort of electrical connector and
I have no idea what it does. Any ideas?

Cheers
Sparky