Service Manual

FUEL SYSTEM 3-19
Carburetor
•
Replace the main jet [A] with a new one for altitude ex-
pected (see High Altitude Operation).
•
Install the new O-ring [B] to the main jet.
•
Using the suitable rod [C], press the main jet until they are
bottomed to the spacer [D].
•
Assemble the carburetor (see Carburetor Disassem-
bly/Assembly).
FR and FS Models
•
Close the fuel shut off valve in the equipment.
•
Remove the carburetor (see Carburetor Removal).
•
Unscrew the solenoid valve [A] and take off the float
chamber [B] and gasket.
•
Using a properly sized blade screw driver, carefully re-
place the main jet [A] with a new one for altitude expected.
•
Tighten:
Torque - Main Jet: 2.3 N·m (0.23 kgf·m, 20 in·lb)
•
Replace the float chamber gasket with a new one.
•
Install the new gasket and float chamber.
•
Tighten the solenoid valve.
Torque - Solenoid Valve: 4.5 N·m (0.46 kgf·m, 40 in·lb)
Fuel System Cleanliness Inspection
•
Refer to the Fuel System Cleanliness Inspection in the
Periodic Maintenance chapter.