Mercury Tachometer Wiring Diagram

I want to connect a tachometer to my 1974 mercury outboard. it was Yamaha tachometer wiring / yamaha outboard rigging guides single engine Wiring mercury outboard hp diagram switch harness boat mariner trim solenoid starter 1971 maxrules merc tachometer diagrams motor ignition schematic

I want to connect a tachometer to my 1974 mercury outboard. It was

Wiring tachometer outboard tach crowleymarine stroke

I want to connect a tachometer to my 1974 mercury outboard. It was

Yamaha Tachometer Wiring / Yamaha Outboard Rigging Guides Single Engine