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Kawasaki FH601V Carburetor
Kawasaki FH601V Engine - Fuel and Air Flow
The main system of the carburetor consists of the main jet A, Valve seat
B main nozzle C, and the main air passage D (main air jet E). The main
system meters fuel to the engine during moderate to heavy load
conditions.
Fuel flows through the main jet and into the main nozzle, where it
is joined by air from the main air passage (main air jet). The resulting
mixture flows out the end of the main nozzle into the carburetor bore,
where it is atomized by the high speed air flow, and carried into the
engine.
Fuel Shut Off Solenoid Valve (Electric Starter
Model)
To avoid after firing when stopping the engine, a solenoid actuated fuel
shut off solenoid valve A is installed in the carburetor bowl. The valve
shuts off the fuel supply to the valve seat B simultaneously when the
switch key turned to the OFF position. The valve opens automatically
when the switch key is turned to the Run position.
Kawasaki FH601V Carburetor Adjustment
Low Idle Speed Adjustment
Disconnect all possible external loads from the engine. Start the engine
and warm it up thoroughly. Adjust the low idle speed screw with Phillips
Screwedriver until the engine idles at specified speed. Idle Speed -
1450 rpm. Release the throttle lever and adjust the low idle speed set
screw on the control plate to obtain the specified governed low idle
speed. Low Idle Speed - 1550 rpm.
High Idle Speed Adjustment
High idle speed adjustment should be made after the idle speed
adjustment is performed. Do not adjust high idle speed with the air
cleaner removed. Start and warm up the engine thoroughly. Move the
throttle lever at a dash to the high idle position and match the lever
hole position with the panel hole by inserting 6 mm dia., pin or bolt.
Loosen two M6 control panel mounting bolts enough to move the
control panel assembly. Carefully move the control panel assembly right
side up or down to obtain the specified high idle speed. High Idle Speed
3600 rpm. Tighten the M6 Mounting bolts. Torque - Control Panel Mounting
Bolts: 5.9 Nm (52 in-lb). Remove the 6 mm dia., pin or bolt. Check the
idle speed, and readjust the idle speed if necessary.
High Altitude Operation
At high altitude, the standard carburetor air-fuel mixture will be
excessively rich. Performance will decrease, and fuel consumption will
increase. High altitude performance can be improved by installing a
smaller diameter main-jet in the carburetor and correct idle speed. The
main jet high altitude kits are available if the equipment is to be used
in the high altitudes. The main jet numbers are stamped on ends of the
main jets.
High Altitude Main Jet
Altitude 0-1000 m (0-3000 ft): Main Jet L: #136, R: #140
Altitude 1000-2000 m (3000-6000 ft): Main Jet L: #133, R: #139
Altitude 2000 m (6000 ft): Main Jet L: #130, R: #134
Kawasaki FH601V Carburetor Removal
Remove: air cleaner and related parts. Turn the fuel shut off valve to
the OFF position. Drain the carburetor. Disconnect the fuel tube at the
fuel inlet joint A of the carburetor. Disconnect the solenoid valve lead
terminal and remove the earth terminal (Electric Starter Model).
Unhook the throttle link spring B at the throttle shaft lever C top end with a long nose plier. Unhook the throttle link spring B at the link clip F with a long nose plier. Unhook the link clip F and remove the throttle D and choke link rods E at the ends of their arms while pull off the carburetor.
Main Jet Replacement
Remove the carburetor. Unscrew the main jet plugs and take off the main
jet plugs and gaskets. Using a proper blade screw driver, carefully
replace the main jet with a new one for altitude expected. Tighten the
main jet to the specification. Install the gasket and the main jet plug.
Torque - Main Jet Plug: 19 Nm (14 ft-lb).
Kawasaki FH601V Carburetor Installation
Clean the mating surfaces of the carburetor and intake manifold, and fit
the new gaskets. Take care not to bend the throttle and choke link rods
during installation.
Make sure the link spring around the throttle link rod is inplace and
that it pulls the governor arm and carburetor throttle shaft lever
toward each other. Be sure the fuel tube clip ends face horizontal
direction. Adjust: Carburetor Pilot Screw, Idle Speed
Kawasaki FH601V Carburetor Inspection
Inspect the carburetor body for damage. Flange sealing surfaces should
be smooth and free of burns and nicks. Replace the gasket if necessary.
Turn the throttle and choke shafts to check that the throttle and choke
butterfly valves move smoothly.
If the valves do not move smoothly, replace the carburetor body and/or
throttle shaft and choke shaft assembly. Check the gasket on the
carburetor body. If the gasket is not in good condition, replace it.
Check the other parts of the carburetor for wear or damage. Replace the
part if necessary. Clean and check the float level as follows.
With the float A assembly installed onto the carburetor body B, hold the
carburetor upside down at eye level. Gently support the float with a
finger and bring it down slowly so that the float arm tab C just touches
the float valve D. The float lower surface E should be parallel with the
carburetor body mating surfaces F.
If the float position is not correct, replace the float with a new one. Inspect the float valve for excessive wear or damage. The tip should be smooth, without any grooves, scratches, or tears. The rod at the other end of the needle should move smoothly when push in and released.
If either the needle or the seat is worn or damaged, replace the float assembly and carburetor body as a set. Inspect the tapered portion of the pilot screw for wear or damage. If the pilot screw is worn or damaged on the taper portion, replace it. Check the spring for weakened condition, replace it, if necessary.
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KOHLER ENGINES SPECS AND SERVICE DATA |
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KAWASAKI ENGINES SPECS AND SERVICE DATA |
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BRIGGS AND STRATTON ENGINES SPECIFICATIONS |
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HONDA ENGINES SPECS AND SERVICE DATA |
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