Interesting. Summary of the ignition system on my 55S. It is a magneto system. The flywheel has an embedded magnet and when the magnet passes under the coil the Hall Effect produces a build-up of voltage in that coil of wire. Then when the flywheel magnet passes the coil, the field collapses and the voltage has to go somewhere and so it goes to ground by passing through the spark plug wire, jumping the spark plug electrode and going to ground in the cylinder head. For decades these systems were used in automobiles and we also used magnetos on race cars since they require no battery to run the ignition system and are not prone to failure like points are.
I am still stumped at what this RIFA module does. I can't find any literature on the thing and the way the wiring is set up it appears to be a non-sensical device and completely useless. It has o only one connect coming out of the casing and that connection goes directly to ground. The casing is grounded through one of the small bolts holding into the chain saw trigger housing. So when this is hooked up you have a black wire that connects to the ground side of the coil, which then goes to the RIFA. Since the RIFA is already grounded, once you hook up the black wire to the coil you effectively ground-out the coil. Now is this Stupid, or What????
I am still stumped at what this RIFA module does. I can't find any literature on the thing and the way the wiring is set up it appears to be a non-sensical device and completely useless. It has o only one connect coming out of the casing and that connection goes directly to ground. The casing is grounded through one of the small bolts holding into the chain saw trigger housing. So when this is hooked up you have a black wire that connects to the ground side of the coil, which then goes to the RIFA. Since the RIFA is already grounded, once you hook up the black wire to the coil you effectively ground-out the coil. Now is this Stupid, or What????
