hi, y'all! noobie here, but born loong ago, and still have a yen to learn new things.
latest project is trying to get my 17hp briggs engine/tractor back on line. two problems with it. 1st is no spark. probably magneto coil is shot, but i don't want to just replace it. that's no fun, right?
i'm hoping to rig up a vintage car coil and points system, but not sure about the ballpark where the spark ought to occur, with respect to position of the flywheel magnet.
the magnetron has two poles, so i'm wondering if it sparks twice, once for each passing of the magnet across one of the poles, or just once.
next, i'm wondering on a good starting point to place a flywheel bump to open the points. ought to be fairly simple to make the mount adjustable, once it's in the ballpark.
any idears where to begin?
ps 2nd problem i'll post separately so i don't confuse myself!