Re: 60 hp timer base
Unplug the wiring harness connectors that lead to the timer base. Connect a volt meter or ammeter lead to each pin/socket (one at a time) of the wiring harness connector, with the other meter lead connected to a powerhead ground. Have the meter set to its lowest DC reading value. Have the key turned to the ON position (not running).
The above has nothing to do with the kill switch. The kill switch should be wired as follows.
Have a wire from the kill switch (preferably black/yellow if possible) connected to the same terminal "M" on the ignition switch that a black/yellow wire is already attached. Connect the other wire of the kill switch to ground. That's it. Now, when the lanyard is disconnected from the kill switch, the button pops out completing the kill circuit and the engine stops running. If the engine continues to run, the kill switch is faulty.