730 gas high altitude

You might want to check that the choke plates are closing ALL THE WAY TIGHT & that the choke disks aren�t bent.

You could also try opening the carb�s load needle a turn or so more (on bottom center of the carb inside the bowl nut)..

A lot of the old Deere�s do start better at low throttle settings or at idle so that is about normal�

I suppose it�s also possible you have a compression problem at cranking speeds due to worn rings or excess ring side clearance to the piston ring lands� Low cranking compression usually likes a closed throttle to start as it can not draw in enough air at a decent speed to pick up fuel with the throttle plates open very far.. Might not hurt to do a cold cranking compression test�

First guess is that it is probably a choke problem though..

Clooney

If that tractor was used at high altitude to farm with it�s possible the load needle might be set on the lean side for your area..

To check-- get the tractor hot,,,, then put it in 3rd or 4th gear & idle it down the lane at slow idle,,,, then quickly advance the hand throttle to wide open.. If the engine won�t take the throttle smoothly, or backfires, or acts lean, start opening the carb load needle � turn more at a time until it will take the throttle smoothly.. That should leave you just slightly on the rich side but they seem to run best right there. Then see if it starts better also..

Clooney