The jet fuel is kerosene with a special oil additive. Jet's are SUPER sensitive to impurities in the fuel, the jet nozzles in the flame chamber are tiny and blockages have a massive impact on the motor's ability to run. The fuel run on the jet is filter filter filter.
I think the only way is to remove the last filter or at least fit a smaller one. I've mailed JetCat for advice.
Marcus
