I have a 5-7 yr rider with a 17.5 B&S. Last season I replaced the battery in the mower, started and ran fine, after a couple hours of use the battery was dead again when I went to start it again (Just jumped it the rest of the season). So obviously there is a charging problem. I have checked the wiring (ground, fuses) and no obvious damage. Now I'm thinking the diode or stator. What is the best way to proceed with diagnosing my issue. It has two wires coming from the stator with an in-line diode above a two-pole connector. Any help would be appreciated.