Clueless, who is probably the most knowledgeable on this forum has posted several times. “is it cause or an effect, did the starter begin bad, or did something burn up the starter”. Might want to check to see if the starter switch has gone bad. According to Clueless, if you are having this problem, “1. Check the battery, 2. Check the starter switch, 3. Check the compression or at least look at the plugs”.
Judge, Jury & Bulldozer