Allis B Magneto

We do a lot of work and repairs on our customer's magneto's. Jerry C made a good point on the re-magnetizing of the magnetic rotor. That is one major cause of a low current spark condition. Another thing to look at which is always overlooked, is the correct alignment of the two contacts. Because of the design of the F/M points, the tension band that wraps around to the junction point for the condensor, mag kill, and coil, tends to "lift" the contact arm which in turn misaligns the contacts causing a low current spark. A little tweaking is in order to get the contacts aligned correctly with one another to make good fire. Another problem F/M had with their "J" series mags was the old style tar-taped coil. These would leak and eventually ground themselves on the mag housing intermitantly causing low current spark. Replacing the old style coils with the newer epoxy coils is a big improvement. If you still have troubles, drop us a line, be happy to help you out! Good Luck!
Steve@B&B
customcircuits@aol.com