Long time listener, first time caller. Was cultivating with the G, hopped off to adjust the cultivator and the tractor died after idling for maybe 5 minutes. Got it started back up a few times, but each time it would idle for a few seconds then die. Now I can't even get the starter to do more than just barely try to turn over. I ran a meter on the battery, starter, wiring...everything seems to be getting enough juice (6.8 v on a 6 v system). Battery, spark plugs and a lot of the wiring is brand new, still tried to jump it. I even pulled the starter and got it to run off another 6 v. Its a pretty old starter, so I'm thinking of bringing it somewhere to be rebuilt or just buying a rebuilt one as I don't really have a lot of time and the weeds are creeping in. Any other thoughts on what might be wrong? Is the flywheel maybe stuck, and overpowering/burning out the starter? Or some other mystery electrical issue I need to chase down? Thanks!