Question about Boating
If you have an outboard you need to locate three wires which are in the control box or in the ignition harness.
1. Gray wire. This is what drives the Tachometer signal. It runs off the charging coils.
2. The Purple wire. This is Ignition on. When you turn on the ignition it is energized
3. Ground. You need a ground also can be found on the key switch.
Connect the Gray wire to "S" on the Tach. Connect the Purple wire to "I" on the Tach. Connect the ground to "G" . The only other thing to do is hook up the light and that can be done by running a wire from the running light switch to the Light on the Tach. The light wires are light blue
Hope that helps.
Posted on Apr 20, 2015
It is a long time since I wired a tacho to anything. Engines with conventional ignition and even engines with electronic ignition fitted (with a separate ignition coil) are relatively straightforward but you should obtain fitting instructions from the manufacturer of the meter or from the manufacturer of the engine where the engine is managed by an ECU. There might be a dedicated output for a tachometer.
It is important not to make a potentially expensive or inconvenient mistake unless you also like rowing.
Posted on Apr 19, 2015
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Posted on Jan 02, 2017
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