[HoosierDaddy]

I have an LP powered forklift that I use out doors. There are no fuel filters. The cause of cold weather start problems is the LP carburetor. There is a small nozzle in it that the gas passes through under pressure. As the pressure is released through the nozzle it becomes very cold (like an A/C nozzle) In cold temps the nozzle will "ice up". You will probably see a couple coolant lines running to the carb. These circulate coolant to the carb to warm it up. Of course they are of no avail when the coolant is cold. That is why some automobile LP systems start and run on gasoline before switching to LP. I put an electric heater in the lower radiator hose to help starting.