Re: Matching numbers ?
I don't pay attention to numbers but if it is a US Marine, it is mid to late '80s.
At any rate, almost all Force engines up to '90 are wired the same at the ignition switch.
Green wire connects to the "C" or choke terminal on the switch. Yellow goes to "S" or start, Blue goes to one "M" and White goes to the other "M". Red goes to "B" or bat terminal. Black is a ground used for instruments and such, and purple is used for tachometer signal.
The "M" terminals are in continuity when the switch is off and open when the switch is on or in run position. Push in the key in start or run position to choke the engine and hold in while cranking--only for a cold engine. When warm you should not need to choke.
Orange is a little special: One wire from "I" goes to one wire of the overheat indicator or one side of the temp gauge. The other wire of the indicator or the other side of the temp gauge goes to the orange wire. The "I" terminal on the switch is used to power accessories (like gauges) that must be powered when the engine is running and not powered when the engine is off. The "I" terminal only receives power from the "B" terminal when the switch is in the on or run position.
On the engine terminal board right by the starter motor, the wires connect like color to like color. Be sure that BLUE is jumped to ground as this is the kill circuit. If either blue or white is disconnected or if blue is not jumped to ground, the engine will start and run but will NOT stop when the ignition is turned off.
