I purchased a Simplicity 728 knowing it had a blown engine for $25. I replaced the engine with a 8hp Briggs & Stratton engine with a pull start off a Snapper rider. The engine was mounted and the engine started and tractor was operational. I then installed an electric starter, replace the points with a Magneto armature and DC Only Alternator. I was able to successfully start the engine using the key, but then after a week or so fuses started to blow and the wire leading to the fuse began to melt and smoke.
I'm not electrical savy and need some assistance.
The starter, magneto and alternator(Part #393814 according to the parts manual) came off a 8HP Briggs & Stratton engine with an engine model 196707-0144-01-970424YE. The replacement engine has a model number of 190702-1188-01-81091012.