Reminds me of Forbe Rose back in the early 70s when I helped him gather hay out of the bar ditches in late summer. He would cut it with his D and watching this worn out old man who couldn't tip the scales at 90 lbs. start that beast was a highlight of the week for sure. He had the petcocks turned upside down and he would open them up and put in an old style, long spout oil can with gas in it and pump on the bottom of the can with his thumb until most of the gas had made it into the cylinder, fiddle around a bit filling the oil can back up and then he would toddle over to the other side and do that one too. One eighth of a turn or less at a time he would roll over that monster and eventually she would jump when that mag went ker-lank and off she was a running.
And then the real show would start because as soon as he could reach the valve, he would switch it over to distillate even though you are supposed to wait until the engine is very warm to do that first - he was just too tight to care about following directions or listening to reasons why. At any rate, the magnificent snorting and backfiring that occurred while the engine was too cold to vaporize the distillate was something every JD enthusiast needs to see at least once. The tractor would almost lift itself clear of the ground sometimes as smoke rings exited the exhaust fast enough to knock down birds from the sky, I swear a hundred feet up on rare occasion. Followed by a miniature explosion it was all a very grand show for me to witness at a distance of the hay stack. Soon enough she would settle down and get to business with no more objections. And we spent the rest of the day cutting kochia weeds with it. But that was a one man job so I was given a garden hoe and told to go uproot sunflowers in the half section of summer fallow - talk about mission impossible, as there were thousands upon thousands if not a full million already knee high or better, it all made for a really long day.
I was being paid $1.50 an hour and that was a very good wage as most others were only getting $1.25 that summer.