ON CERTAIN MOTORCYCLES, THE OUTLET PORT OF THE FUEL PUMP MAY DISLODGE FROM THE PRESSURE REGULATOR HOUSING, REDUCING FUEL PRESSURE AT THE FUEL RAIL.
ON CERTAIN MOTORCYCLES, THE FUEL RAIL ASSEMBLY CONTAINS A SCHRADER VALVE THAT PERMITS A DIAGNOSTIC CHECK OF FUEL PRESSURE AT THE FUEL RAIL DURING ENGINE OPERATION. IF THE SCHRADER VALVE IS NOT PROPERLY TIGHTENED, FUEL LEAKAGE COULD RESULT.