150 Mercury Boat Tachometer Wiring Diagram

Select a tachometer mounting location that is in full view of the operator.

150 mercury boat tachometer wiring diagram. Make sure this switch is set to the number of cylinders for your engine. Outboard motor control wiring part 1. I wire up the power and then select the number of pulse or cycles my outboard has to get the correct reading. We have parts service manuals and wiring diagrams available for mercury outboard motors.

Collection of mercury outboard wiring diagram. Outboards and some pre 2001 mercury 90hp outboards may require wiring a 1mf 100. Most vendors will use one tachometer head to cover a variety of engines. See diagram on the next page for connections.

It reveals the parts of the circuit as simplified shapes as well as the power and also signal connections between the devices. Merc v6 models 150 hp 175 hp 200 hp ser 5124981 to 5363918. 1 here shows the back of a typical gauge. Beginning with the tachometer fig.

86mm hole in the dashboard. If the tachometer is covered by a transparent shield the shield must be adequately ventilated to help prevent sunlight heat soak. A wiring diagram is a streamlined traditional photographic depiction of an electric circuit. At the top left of the diagram we see the cylinder selector switch.

Mount the tachometer so water will not collect on the face or drip on the case and wires. Seat the wider face rim the front edge of the tachometer s exposed side the part that sits outside the dashboard against the hole edge and use. Drill a 3 3 8 in. These codes apply to later model motors approximately early 80 s to present.

Connect the boat harness wiring to the tachometer if it was disconnected in the repair process and reinsert the connected wires back into the tachometer dashboard hole followed by the tach itself. In this video i install an tachometer in my boat. This is the tachometer i used http. 1996 evinrude 40hp parts used in this test.

Outboard engine wiring series links.