Which wires??? - The Hull Truth

3rdday · 09-11-2009, 09:37 AM

I have a 1996 OX66 Yamaha with round digital gauges.
I am not getting a temp lcd indicator on the tach nor a horn., however the ECU lowers the rpm when hot. Every other function or indicator works. i believe the tach is wired incorrectly.
They used and 4 pin extension with different wire colors that what it is connected to at the engine.

Which wires from the motor connect to which wires on the tach to give me the blinking lcd indicator and the horn for overheat?

Out of the tach i have a 4 pin connector with only two wires a Green-red tracer and a Green-white tracer- The rest of the tach wires are connected.
Thank you in advance!

A1 Outboard · 09-12-2009, 08:19 AM

There should be a harness under the dash which has two square 4 pin connectors. Connect the the harness to the tach even though the wire collors do not match.