I have a 97 trail boss 250. It starts and runs fine, but sometimes when I’m plowing my small driveway with it and using the winch, the battery will drain so much that I’m not able to pull the plow up or down. I have to stop, put it in the garage and charge the battery. I’ve put 2 new batteries in it, but that hasn’t helped. The battery has 12.5 volts. When I start it and rev it up, the voltage doesn’t change. That made me think my stator is going bad so I took it off, got ready to order a new one and got to thinking that it looked like new still, maybe I should test it first. I have a manual on disc, but of course I can’t find it. I have no idea what ohms the resistance should be and the best way to test it. I also don’t know how to check the rectifier. Sure wish I could find that darn disc!