I would appreciate any help as I am new to tractors. B7000 wouldn't start after battery charging and a cable on the starter (I think) near base of engine ( cylindrical housing with rubber top under the exhaust) started smoking and was seriously overheating. Smelt it when starting normally but it got much worse when using jump leads. The tractor also keeps turning over and trying to start even when I stop turning the switch. Any ideas what is causing it. I think I need a new battery because even after a full charge it didn't have the strength to spin the engine very quickly. Thanks