parked tractor last fall, running perfectly. Tried starting today first time this year and no start. Usually when I touch button, she fires. Never done this in the past. I changed fuel filters and made sure fuel coming out of lines to filter housing. Check air filters for obstructions, ok. Used hand pump and got filters primed, still no start. Tried using ether button, pulled line from manifold and it does spray. Tractor wont even fire using ether? Wasnt getting any smoke at first, but after messing with it for ever, now have some smoke out of stack when cranking. It did fire twice at different times after using hand pump. Batteries charged up, spinning over quickly. I have not tried bleeding injector lines, but curious as to no fire when using ether.