I own three first gen Interceptors, 83,84, and 85. I've resurrected them all from junk but the 84 VF700 is giving me fits. When being started cold it appears to want to fire on one cylinder. It will only idle (just barely) with the throttle closed. Open the throttle and it dies. After about a minute or more another cylinder seems to light up. At that point I can give it some throttle and after some throttle blipping I can get the other two cylinders to fire and it will quickly clean up and run on all four. Then everything is fine until I try to restart it cold and the process starts all over. The bike has a replacement Ebay engine that I bought after finding out that objectionable engine noises could not be cured with a valve adjustment. This starting problem preceeded the engine swap and has persisted unchanged until now. Since installing the newer, better sounding, engine I have done the following, in this order to track down the problem: -swapped carbs for a California VF700 set. Cleaned these carbs, which were really plugged. I didn't do anything to the capped pilot screws. -swapped out the fuel pump from a running bike, no change. -swapped out the spark boxes from a running bike, no change. -swapped out the fuel pump from a running bike, no change. -swapped out the coils and wires from a running bike, no change. At this point I am really starting to suspect plugged pilot jet circuits. I know that the main jets and slow jets were completly plugged. Has anybody ever heard of the pilot air screw jets being plugged even though they have not been uncapped since leaving the factory? Is there anything else I might have missed?