1986 Mariner instrument gauge wiring

I have a 1986 90 HP Mariner outboard with engine serial number A903730. I am trying to connect my instruments, Tach, Speed, Water Pressure, Gas and Oil Pressure. I have an 8 wire ignition Harness with a push key for choke. The following are the wire colors. Red (pos), Black (neg), Yellow with Red stripe, Yellow with Black stripe, Black with yellow stripe, Purple, Grey, and Tan. I also have two yellow wires coming from the Shift Lever Box. I have the standard one handle shifter forward and reverse and a button in the center to push in to increase the rpm without engaging the gears. I need help in getting a wire diagram from the ignition to the gages and also where to connect the two yellow wires from the shifter box.

Re: 1986 Mariner instrument gauge wiring

Yellow/red is starter solenoid; yellow/black is choke solenoid; black/yellow is ign killer. Grounds to black with ign switch off; purple is ign accessory power. Power your gauges with this; grey is tach sender; tan is overheat. Not sure about yellow wires. Does that control have PTT switch?

Wiring diaghram is avail at maxrules web site.

Re: 1986 Mariner instrument gauge wiring

Chris1956 said:

Yellow/red is starter solenoid; yellow/black is choke solenoid; black/yellow is ign killer. Grounds to black with ign switch off; purple is ign accessory power. Power your gauges with this; grey is tach sender; tan is overheat. Not sure about yellow wires. Does that control have PTT switch?

Wiring diaghram is avail at maxrules web site.

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Thanks for info will check the website. No PTT switch. I think the prior owner mixed and match the wires with what ever was available to him. I am not sure what colors the original wires were and there is no wire harness just the yellow wires. I guess I might have to go into the shift control

Re: 1986 Mariner instrument gauge wiring

actionray said:

Thanks for info will check the website. No PTT switch. I think the prior owner mixed and match the wires with what ever was available to him. I am not sure what colors the original wires were and there is no wire harness just the yellow wires. I guess I might have to go into the shift control

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I think I the two yellow wires comning from the control switch are yel/red for the neutral start interlock, and black/yel for the ignition safety stop switch. Thanks for your help