Gauges for 2004 Mercury 40-HP

Electrical and electronic topics for small boats
Crosenthal
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Joined: Mon Mar 23, 2020 7:16 am

Gauges for 2004 Mercury 40-HP

Postby Crosenthal » Tue Jul 14, 2020 6:31 am

I am rigging a 2004 Mercury 40-HP two-stroke-power-cycle engine. This engines be was laying in the cockpit when we bought the boat and had never been mounted.

What engine gauges should I install at the helm?

jimh
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Joined: Fri Oct 09, 2015 12:25 pm
Location: Michigan, Lower Peninsula
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Re: Gauges for 40-HP Engine on 13- foot Skiff

Postby jimh » Tue Jul 14, 2020 7:26 am

The fundamental engine gauges are:
  • tachometer
  • temperature
  • cooling water pressure
  • alternator voltage
  • trim position

On a 13-foot skiff, perhaps just a tachometer would be sufficient.