115 yamaha 4 stroke starting without control harness

[oldmanfu]

Need some help and have search forum but nothing relate. I am looking at buying a used 2001 115 4 stroke motor but the control harness is burn. is there a way to start the motor and stop it safely. I have electrical background but not familiar with outboard at all. Please help as this is an expansive motor and seller is 5 hrs away.

Next things are what else, where and how much. This will be install on a Monark 2001 17.5 FS with a current 75 Force Mercury on it now.

Base on my boating experience i think i will need these:
1. Main harness from motor to control (part number??)
2. Control throttle cables(part Number??)
3. Control side mount??Model???
4. Yamaha Gauge, or wired to old gauges.
Any one has used control that want to sell, send me a private message with pricing. I am from Twin Cities<MN

[oldmanfu]

***!!! i am on the wrong forum, not helpful at all

Any way, i think i might hit a thread from other site which mentioned something like this. Don't try it yet, let me try and i will post if it works.

Author of Thread wrote this;


Connected the red wire to yellow wire together, touch brown wire to red and yellow together. Motor should run, undo the red and yellow to stop engine.

Please comment if you have 1st hand experience..

[rodbolt17]

you really need a switch.
the ECU requires the stop signal to correctly shut down.
red to yellow will turn on the main relay,brown to red will engauge the starter.
black to white while removing the red to yellow will shut it down.

[oldmanfu]

thanks, going to rig 2 toggle switch. Thankyou for recommendation! I will drive to me the seller this weekend. Hope she runs..