Yes – a wrench or other piece of iron. The coil does this when the flywheel is on the motor. Dropping the flywheel, or just throwing it on the workbench without this continuity protection will weaken the magnet. In the old days most outboard repare shops had a magnet recharger. Many members have one today and can (When requested) bring them to meets to recharge flywheels for those who need the surface. The high voltage minding is just a single coil with a plug wire on each end It depends on both plug wires attached to plugs screwed into the motor to complete the circuit. It takes hundreds of turns of wire the boost the 6 volts at the points to the 60.000 volts going to the plugs. That means that wire is very thin and delicate. When everything is right the spark should jump o half inch gap between the ends of the spark plug wires.
