I have just returned from a successful post re-build road trip with 1400 miles on the clock.   My only issue seems to be a hard cold start issue.  The engine will fire right up, stall and then will require a bit of gas to get it going again.  After it is warmed up it runs like a champ.  Everything is new on this engine.  I did a complete tear down, all bearing, seals, new AA 95.5mm pistons and jugs, remanufactured Go Westy heads, all new sensors, exhaust, cat, o2 sensor...  The grounds are all clean and tight, so I am stumped on the cold start issue.  Any ideas on where I should be searching?

Thanks,
Finn Runyon
Taos, NM
87 Westy Pooh
89 Westy Roo