Hey everyone I've finally started something i always wanted to do and thats restore an old ford tractor. I needed a project to get over a breakup with the ex girlfriend so I bought a 640 lol. Bought it from a tractor dealer everything works on it and it fires right up usually dont even have to choke it. But yesterday i was driving it around the yard and once it got warm it doesn't run quite as well as it does cool, then out of no where it just stalled on me and wouldn't restart at first but then it randomly did. I parked it and it wouldn't start back up and cranked EXTREMELY slow like i had a dying battery. I figured i probably drained the battery cranking it when it stalled on me but once it cooled off starts and runs like a champ. Today i drove it for about 30 mintues and it didn't stall any but it did start missing when climbing some hills and didn't wanna start again once i parked it hot, slow crank sounds like battery is dead, but after resting awhile right back to normal. Any thoughts??? Of course i'll try a good tune up when i get time but i don't think that would make a difference with the hot start issues. This is my first experience with a tractor motor but I can get it to idle all the way down to 300rpm i have never in my life seen a motor idle that low. In my experience with cars and boat motors (inboards) i;ve always known a motor must have the carb adjusted to near perfection and timing has to be spot on to get a motor to idle perfectly much less idle at that low rpm. it blows my mind i have never seen such a thing. but i've never dealt with a tractor before maybe this is normal?