BUBBLES AT 8TH NOTCH, ONLY IN RETURN SIGHT GLASS
a) SUCTION PIPE ADAPTERS & PIPELINE LEAKAGE.
b) LEAKAGE IN THE INJECTOR.
c) LESS FUEL PUMP PRESSURE (25 TO 32 PSI)
d) ANY FOREIGN MATERIAL IN SUCTION STRAINER AND IN FUEL TANK SUCTION PIPE.
e) PRIMARY FILTER DRAIN COCK OPEN
