black/white is your stop switch.....it's an open circuit until you press the stop button. Sometimes a faulty switch or corroded connector will prevent a ski from starting due to a short that completes the circuit. Disconnecting the black/white connector will eliminate a faulty stop switch from the equation. essentially, the black/white wires are not required to run the ski...you will just not have a stop switch. Turning down the idle will work to kill the ski.
To start a ski without a switch, jump the red/brown wires with a short lead. This simply engages the starter, and so long as the black/white wires are open, the ski will run. Only jump the starter long enough to start the ski, then remove the lead.
With a broken start/stop switch, the idle adjuster is your friend. Turn it down to kill the ski. The oside crew has more than one ski with broken start/stop switches. Most of them have the stop button wired as the start. Hooking the red/brown wires out of the electrical box to the black/white wires on the switch will accomplish this. It's best to leave teh black/white wires from the box disconnected, as you'd only do this with a broken switch anyway.
