The Mag doesnt require battery voltage to work for one thing, but when they replaced hand start with electric start tractors the mags started to loose out for battery powered coil ignition systems whuch generally speaking develop more energy for a hotter spark. Another major advantage of a distributor is it can have a variable RPM based spark advance curve versus a mag which bacically has only a start/impulse timing and then a fixed run time advance with no in between and no variable versus RPM timing like the distributor. The mags also have all that spring wind n trip and impulse mechanism to wear n go bad which the distributors dont have to worry about.
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Today's Featured Article - Talk of the Town: Repairin a Gas Tank - by Staff. This interesting discussion is from the Tool Talk Discussion Forum. Remember that safety is your first priority - make sure you know what you are doing before attempting a potentially dangerous activity!
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