Engine not charging

[Reynbo]

I have an MTD lawn tractor mod 604, 20 hp V-Twin B/S. New battery not charging, how do I test the voltage regulator

 

[Rivets]

Need the model numbers of the engine to identify the type of charging system. Also, do you have and know how to use a multi-meter?

 

[Reynbo]

Need the model numbers of the engine to identify the type of charging system. Also, do you have and know how to use a multi-meter?

Got it thanks