86 30 hp mariner

[ted]

"just converted a controll to

"just converted a controll to a tiller,figured out wiring cept for the green wire, voltage varries with engine rpms,5vdc to 10 vdc approx,could it be a tack wire? thanks TED"

 

[mystro67]

Tach wires are usually grey. T

Tach wires are usually grey. The only green wire on that engine should be the down circuit for the power trim. Any aftermarket manual should be able to tell you for sure in the wiring schematic.