In reply to mctinkno:
Liquid fuel spitting from the jet? Did you have the canister inverted? If not, I see no reason why liquid fuel should be getting to the jet (gas should be boiling off the surface of the liquid and escaping via the valve)
If you had the canister inverted, then you may not have allowed the pre-heat tube to warm up enough before inverting the cylinder. If you have a tall, yellow flame, it's not burning efficiently, so probably won't heat the pre-heat tube properly, so the situation will never get better.
An empty canister may not have enough liquid in it to allow liquid fuel to reach the valve when inverted but resting on its side, so only gas will come out.
That's my theory. So, run it again with a non-inverted canister for a while before inverting, and if it still sprays liquid fuel (or you never had the canister inverted to start with), get on to Primus.
Sadly, Primus' website is very light on design details or user manual, so it's hard to see how it's meant to be used; I can't even see if there
is a pre-heat tube. Their 'read more' links are circular...