I finally gave in and replaced my 40-year-old steel work boat.

The new boat is powered by a new-old-stock 2001 Mercury 30hp 4-stroke
outboard - carbs, tiller, manual start. Very happy with the performance
and fuel economy :-)

I need to install running lights and I'm hoping the motor has a lighting
or charging coil I can utilise to avoid the hassle of a battery, but the
owner's manual is useless, doesn't even include a wiring diagram. My
motor does not appear on Mercury's web site listing of those for which
an accessory lighting coil is available.

There are two yellow wires which appear to come from the stator, not
connected to anything, just have rubber plugs installed in the
connectors. An analog multimeter reads about 3V DC/25V AC across these
wires at idle. Are these for the charging circuit on the electric start
version? Can I use them to power running lights?

If so, where can I obtain a rectifier/regulator suitable for powering
12V DC running lights, or (better yet) a circuit diagram to make my own?

TIA

Sunny