rmcderm313
Regular Contributor
Hi Folks,
I have a couple of questions on a wiring project on a 1987 Merc 25HP. For a few reasons, I am maintaining the remote steering and remote throttle controls, but I am looking to disconnect the remote start. I have disconnected the remote start cable (the multi pronged plug) from the console. I am now looking to do two things:
**For ease of explaining, please see the attached photo of the switchbox in which I have identified the wires with numbers.
1 - Install a kill/safety switch. I have receievd this part and I am looking for the correct way to wire it into my switchbox. I will (somehow) mount this switch so it is accessible from outside the cowl and connect the lanyard there. I'm thinking I need to disconnect the black/yellow wire (Wire #3) that is currently wired into the disconnected remote start cable, and replace that with the black/yellow cable that is attached to the new kill switch, and then ground the black wire from the new switch to the engine block. I'm assuming that is what is happening at the console, but if someone could take a look at the diagram and verify that would be appreciated.
2 - Figure out why my engine will start with the remote throttle in gear. It is not required to be in neutral, and I do not need the "throttle advance" button pushed in to start it. Can someone explain how this safety feature is supposed to work. I'm assuming it has something to do with the fact that the remote start cable is disconnected, but I'd like to understand how to wire it so it is working again and prevent the boat starting in gear with the prop engaged.
Graham was nice enough to send me a switchbox diagram that was really helpful but I'm just not sure which of the two black/yellow wires I should be working with and with the cost of these parts I'm being extra careful not to damage anything.
Bonus question - If my assumption in #1 above is correct and I should be replacing the current wire to the remote starter cable, can someone tell me why it is working at all now? Is it becasue that black/yellow wire is not currently connected to a ground (it just terminates in the unplugged cable) and therefore presents resistance to the electricity, so it travels elsewhere (i.e. over the spark plug gaps)? I think Graham asnwered this for me in a different question and context but sometimes I need to state a question differently so I'll fully understand it.
Thanks as always for any assistance you can provide.
Rob
I have a couple of questions on a wiring project on a 1987 Merc 25HP. For a few reasons, I am maintaining the remote steering and remote throttle controls, but I am looking to disconnect the remote start. I have disconnected the remote start cable (the multi pronged plug) from the console. I am now looking to do two things:
**For ease of explaining, please see the attached photo of the switchbox in which I have identified the wires with numbers.
1 - Install a kill/safety switch. I have receievd this part and I am looking for the correct way to wire it into my switchbox. I will (somehow) mount this switch so it is accessible from outside the cowl and connect the lanyard there. I'm thinking I need to disconnect the black/yellow wire (Wire #3) that is currently wired into the disconnected remote start cable, and replace that with the black/yellow cable that is attached to the new kill switch, and then ground the black wire from the new switch to the engine block. I'm assuming that is what is happening at the console, but if someone could take a look at the diagram and verify that would be appreciated.
2 - Figure out why my engine will start with the remote throttle in gear. It is not required to be in neutral, and I do not need the "throttle advance" button pushed in to start it. Can someone explain how this safety feature is supposed to work. I'm assuming it has something to do with the fact that the remote start cable is disconnected, but I'd like to understand how to wire it so it is working again and prevent the boat starting in gear with the prop engaged.
Graham was nice enough to send me a switchbox diagram that was really helpful but I'm just not sure which of the two black/yellow wires I should be working with and with the cost of these parts I'm being extra careful not to damage anything.
Bonus question - If my assumption in #1 above is correct and I should be replacing the current wire to the remote starter cable, can someone tell me why it is working at all now? Is it becasue that black/yellow wire is not currently connected to a ground (it just terminates in the unplugged cable) and therefore presents resistance to the electricity, so it travels elsewhere (i.e. over the spark plug gaps)? I think Graham asnwered this for me in a different question and context but sometimes I need to state a question differently so I'll fully understand it.
Thanks as always for any assistance you can provide.
Rob
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