It sounds like you';re using the machine around the farm for personal use.
Be sure the coolant level is is topped, the antifreeze warms the fuel to vaporize it. On those cold morning starts allow the engine to idle and run slowly for a time giving the coolant and engine time to get warm so it could heat the fuel.

You don't want freeze up the fuel convertor (or old style "football") that you may have in that older truck by running the engine fast.
At worst, you can install a coolant block heater and plug in an hour b4 start up.

Also, its a good idea to shut the fuel tank off and run the gas out of the lines when shutting down for the evening, (don't forget to shut the key off or you'll kill the battery). I've have seen high pressure fuel line rupture and push gas out into a confined area; couple that with a open/ or defective fuel tank valve you can have an issue with 8 gallons of propane floating around when some turns the lights on the next day.

The old style football systems may require a quick pull and release on the choke cable for a start especially when cold.
good luck.