Step one is to test the magneto as a system with the Allen Electrical Servicer then if faulty identify and correct the defective components. Often it is not a magneto issue at all. Fouled plugs often cause mags to be sent in for service.Mar 12, 2019 · briggs and stratton magneto wiring diagram – You will want a comprehensive, expert, and easy to comprehend Wiring Diagram. With this sort of an illustrative guidebook, you are going to have the ability to troubleshoot, avoid, and total your assignments without difficulty. Step one is to test the magneto as a system with the Allen Electrical Servicer then if faulty identify and correct the defective components. Often it is not a magneto issue at all. Fouled plugs often cause mags to be sent in for service. For magnetos, we have a variety of different types of spark test gap to which the HT output(s) of the magneto can switched. Above is one of a pair of 3-point gaps. The gap between the main electrodes is typically set to 5.5 mm (as specified by Lucas for slow-running tests of their post-war magnetos).