Bike cut out yesterday and wouldn't start. Flat battery. Was recovered home after being jump started once then broke down again. All fuses and relays working, lights working, no error codes. With battery charged (13.4v) and holding, the bike starts and idles but there is no input from the charging system to the battery. Alternator was replaced last year. One thing I haven't checked is the belt drive. Do these snap? The bike has done 46k miles.