Most of the posts are rather old, so I just need an update. I dragged a PST 600R out today that has not been run for maybe three years. It fired on the propane, but the pump never started and it did not ramp up. I tried the prime function and it would not prime. I hooked the pump to a battery direct and it did work. I may need to send it in for repair. Is anyone doing it in the US? If not, I guess back to the factory.

Thanks.