FORCE 85 HP (1989) 856X9F - new ignition...desparate

TomasoPajaco

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Oct 14, 2021
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I bought a boat with force 85 outboard 1989 model 856x9f, the key ignition is so old that the plastic pretty much fell apart when i tried to turn the key, i purchased a new ignition key with hopes i can do an install myself, i looked at the wiring and its a mess and now im stuck, can someone tell me how to connect these wires, i looked this up on net but its all sorts of graphs and pictures and i cant seem to find a match anywhere, all help sincerely appreciated!
 

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Nordin

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Jun 12, 2010
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2,614
Terminal strip engine. Keyswitch.
Yellow wire S terminal
White wire M terminal (one of them, does not matter which one)
Green wire C terminal
Red wire B terminal
Blue wire M terminal (the other that is left)

A terminal at key switch is for auxiliary, hot in RUN position.
The M terminals are shorted to each other in OFF position and are wired so the white wire from engine terminal will ground out to stop the engine..
If you have a VOM or a continuity buzzer you can trace each wire to be really sure.
 

TomasoPajaco

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Joined
Oct 14, 2021
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4
Terminal strip engine. Keyswitch.
Yellow wire S terminal
White wire M terminal (one of them, does not matter which one)
Green wire C terminal
Red wire B terminal
Blue wire M terminal (the other that is left)

A terminal at key switch is for auxiliary, hot in RUN position.
The M terminals are shorted to each other in OFF position and are wired so the white wire from engine terminal will ground out to stop the engine..
If you have a VOM or a continuity buzzer you can trace each wire to be really sure.
Thank you You have no idea how helpful this is one if this is 1 question though what happens with the blackwire that's coming out of the block
 

Nordin

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Joined
Jun 12, 2010
Messages
2,614
Black wire from head is from the overheat sensor and goes to terminal "overheat" at terminal strip.
The sensor is a bimetallic sensor and when overheat it ground out.
You can wire up a horn or a light as warning for overheat.
Connect a wire at A terminal at keyswitch (hot, +12V) in RUN position to a horn or light.
Then connect another wire from horn/light to the "overheat" terminal at the engine terminal.
If overheating the sensor will ground out and you got full circuit to the horn/light and it will go off.
 

jerryjerry05

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May 7, 2008
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18,112
Ignition
 

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TomasoPajaco

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Oct 14, 2021
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Black wire from head is from the overheat sensor and goes to terminal "overheat" at terminal strip.
The sensor is a bimetallic sensor and when overheat it ground out.
You can wire up a horn or a light as warning for overheat.
Connect a wire at A terminal at keyswitch (hot, +12V) in RUN position to a horn or light.
Then connect another wire from horn/light to the "overheat" terminal at the engine terminal.
If overheating the sensor will ground out and you got full circuit to the horn/light and it will go off.
It probably is not much but thank you for all this, i hooked up all the wires and the motor started, thank you again!
 
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