On many/most of the old number series briggs eng(40's-60's)the magnetron conversion won't work due to reverse polarity on flywheel magnets,in addition his eng has a magna-matic system with coil/magnets in a rotor under flywheel,it's also probable flywheel has no magnets in same for ign coil if you buy/install an ext mount coil on eng you would have to buy another flywheel designed for ext coil as on most of the larger series number eng with ext coil the flywheel timing is adjustable in addition when buying a used flywheel of this age you get into the possible problem of weak magnets.
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Today's Featured Article - Identifying Tractor Noises - by Curtis Von Fange. Listening To Your Tractor : Part 3 - In this series we are continuing to learn the fine art of listening to our tractor in hopes of keeping it running longer. One particularly important facet is to hear and identify the particular noises that our
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