Hey everyone, I have an xr400 that I cannot start after getting a the mikuni Pumper from XRs only. I have a ProCircuit T4 pipe on it, and just had my top end rebuilt with new piston. Valves and timing are tuned to spec. I have tested pilot jest from 15-45 with no luck. After taking off the carb I found that there was a jest missing in the intake side of the carb..does anyone know if this could cause starting and running issues?