Yamaha Marine Wiring Harness, 8x12x4 Inches, Fuse Connector, Custom Cable, Copper/PVC

If you don’t already have this for your Yamaha outboard or tach you will need it. Simple to hook up.

I have a 2021 V21-21DC Warrior with a 300 Yamaha and a 9.9 Yamaha kicker. The 9.9 did not have an hour meter or tach from the factory. After a butt load of research that ended up as an educated guess that this would work, I used this harness to connect my added Yamaha tach to the existing factory wiring. There was no cutting or splicing needed, all the connections simply plugged right in.It worked fine and I now have a tach and hour meter on my kicker that match the factory Yamaha gauges.