Stators are basically all alike be it on a lawn mower or a motorcycle. The stator generates AC at X amount of amps at X amount of AC voltage. Usually two wires output from the stator to a bridge rectifier . Ususally it's the two outside connections are from the stator. The center is the regulated DC output to the battery. You can test your bridge rectifier with a volt/ohm meter. Set to ohms + to center terminal then reverse. Do the same on the other outside terminal to center. Readings should be the same if the rectifier is good. Stator is either good or bad. It is nothing but a circular group of coils passing by magnets. The coils are copper wire wrapped around a iron core. It is a continuous circuit ending with two wires making the loop. Check to see if the magnets are where they suppose to be. A magnet can come loose and destroy a stator. If metal filings are floating around inside, they will act as a short as a coil passes a magnet. Low voltage on the stator could be some damaged magnets/coils.

 

I had a new stator come in a while back along with a new CDI.

I installed the new CDI and stator. Visually the spark was 1000x better. Went back to the original CDI and it still had a nice solid spark. Just was a weak stator and needed a replacement.

About a half hour playing with it and I got the idle at a good area and kickstarting works on the second kick.