Do you have an inline fuel filter? AIH typically came stock with a Golan fuel filter, if so take it apart and clean it. If not, drain your tank, pull the petcock and check the screen for buildup. Both of these things cost you nothing but time. As mentioned by Harry, loosen your gas cap when it stalls, if you hear air rushing in the tank its a vent problem. Could also be ignition issue, the ignition wire loom on the Tejas goes from cone up through the frame mid downtube just in front of the trans, I had a broken wire which once the bike warmed up would be problematic so I changed the entire ignition to Ultima. The kit has new ignition module, wire loom and coil, cost was under 200 bucks and now it is a very reliable ride. None of these may be your exact issue but they would be my suggestions for places to look. Diagnosing without hearing is very difficult... could always just be the dirty California air..