Webster model M 20 magneto for sale. This magneto puts out a WEAK spark by giving the armature a quick spin by hand and by scratching the lead out wire against my steel bench. I don’t think it will start or run an engine in its current condition but i believe it’s a great candidate for a simple rebuild or even a quick re charge may do this magneto wonders. Please note that this magneto has the extra stud on the back side of the end plate to hold a roller for a trip arm. A lot of stover engines took that and possibly other brands. The armature bushings seem to have the typical “slop” not tight but not completely worn out like others I have seen. The Mounting studs seem to be good shape and they have a bolt pattern of 1 1/2″ x 2″ on centers. I do not see any cracks unlike most pot metal bases! If you’re looking for a barn fresh magneto and have the Knowledge and tools to get this working like new again this is the item for you! See pictures for the absolute best description.