My bike has been having starting issues ... battery (I thought). Put it on the battery tender and its starts fine. Take it for a ride and try to start again after I get home and clicks (no start). Today the tack went wonky a mile from home and again won't start right after a ride. I think it is the charging system (stator). How can I confirm this? 2014 with 23K miles ... is it time for a new stator/regulator? If so, best source for new parts?