A loose kill switch wire on your out board motor will cause the engine to lose power. As the kill switch loses contact the motor will begin to bog down or completely quit.
The kill switch wire is either disconnected or broken. Follow the wire from the OFF position of the ignition switch toward the engine where it connects to another wire coming from under the engine shroud. If everything is okay between the switch and where the two wires connect, you will have to remove the engine shroud to look there.
If the mower has a shift knob control for "Start" "Run" and 'Stop', the kill switch will be on the end of the cable that leads to the throttle bracket. If the mower has the safety handle that shuts off the mower when it is not depressed, the kill switch will be at the end of the cable that leads from the handle to the engine. If the mower is operated with an on-off ignition switch, the kill switch wire will be spliced to the switch "off" wire some where between the throttle cable and the switch.
The kill wire from the coil typically connects to the ignition switch or a safety mechanism that grounds the ignition system to shut down the engine. This connection enables you to stop the mower engine by turning off the switch or engaging the safety feature.
To wire up the stop switch on a Yamaha 15A 15hp outboard, locate the stop switch terminals on the engine's wiring harness. Connect one terminal of the stop switch to the kill switch wire, and the other terminal to the ground or the engine block. Ensure all connections are secure and insulated to prevent corrosion. Test the switch by starting the engine and then engaging the stop switch to confirm it halts operation effectively.
The kill-switdh wire is disconnected. loose. or broken. The kill-switch wire starts from the OFF position of the ignition switch and meets another wire that leads to GOUND to stop the engine.
Check the wire on the kill switch, usually located on the throttle at the carburetor. This wire grounds out the magneto.
what is the engine control switch feed wire on a distributer
goes to kill switch
More than likely the wire that runs from the ignition switch to the kill switch is disconnected, loose, or broken. The wire starts at the OFF position of the ignition switch and connects to another wire that shuts off the engine.
Look for a disconnected or broken kill switch wire. The wire runs from the ignition switch OFF position and usually connects with another wire that comes out from under the engine shroud. On my application, the wires "meet" and connect at the throttle harness.
On the side of the coil there is a little terminal if you take a wire form that to a switch and the other terminal on the switch and earth it out on the chassis..