Johnson Outboard Tachometer Wiring Diagram. In this video i install an tachometer in my boat. Install bracket star washers and mounting nuts.
Outboard boat engine wiring colors. Please verify your wiring before doing any work. Low oil lightgauge sender.
Wire and the black meter lead to the tachometer.
Therell be main lines that are represented by l1 l2 l3 and so on. Wires must be 10 gauge minimum to ammeter. However variations can exist such as between remote control and tiller models. But it does not imply link between the cables.