Surge at Cruise

POSSIBLE CAUSE ACTION

Restricted fuel delivery or fuel Replace filter.
filter

Improper fuel level Adjust float level and drop, check
float hinge pin for binding; service
and adjust as required. Proceed
to ADJUSTMENT PROCEDURES.

Low fuel pump volume or Test fuel delivery system. Refer to
pressure FUEL PUMP TEST.

Contaminated fuel Drain fuel, clean as required.

Damaged metering rods Replace

Feedback motor inoperative Check for smooth operation. Refer
to FEEDBACK CARBURETOR
ACTUATOR MOTOR.

Blocked air bleeds Clean and service as required.

Fuel leaks around carburetor Service as required.