Kohler Command PRO CH620-CH740 Owner's Manual page 93

Install Fuel Pump
Explosive Fuel can cause fi res and severe
burns.
Do not fi ll fuel tank while engine is hot or
running.
Gasoline is extremely fl ammable and its vapors can
explode if ignited. Store gasoline only in approved
containers, in well ventilated, unoccupied buildings,
away from sparks or fl ames. Spilled fuel could ignite if
it comes in contact with hot parts or sparks from
ignition. Never use gasoline as a cleaning agent.
NOTE: Pulse style fuel pumps may be made of metal or
plastic. If a new fuel pump is being installed,
make sure orientation of new pump is consistent
with removed pump. Internal damage may occur
if installed incorrectly.
1. Install pulse style fuel pump and lines as an
assembly. Connect pulse line to crankcase vacuum
fi tting or valve cover, whichever source is used.
2. Install fuel pump using screws. Torque screws to
2.3 N·m (20 in. lb.).
Install Carburetor
Explosive Fuel can cause fi res and severe
burns.
Do not fi ll fuel tank while engine is hot or
running.
Gasoline is extremely fl ammable and its vapors can
explode if ignited. Store gasoline only in approved
containers, in well ventilated, unoccupied buildings,
away from sparks or fl ames. Spilled fuel could ignite if
it comes in contact with hot parts or sparks from
ignition. Never use gasoline as a cleaning agent.
One-Barrel Carburetor Models
1. Install a new carburetor gasket. Make sure all holes
align and are open.
2. Install carburetor, throttle linkage and governor lever
as an assembly. If a plastic intake manifold is used
and carburetor is equipped with a fuel solenoid,
attach ground lead to carburetor mounting screw.
3. Torque carburetor mounting screws to
6.2-7.3 N·m (55-65 in. lb.).
Two-Barrel Carburetor Models
1. Use a new carburetor gasket. Make sure all holes
align and are open.
2. Apply Loctite 242 to shorter (inner) set of threads
® ®
of any removed studs.
3. Assemble carburetor gasket and carburetor to intake
manifold, and start any removed studs. Use two
fl ange nuts locked fl ange to fl ange and tighten each
stud until bottomed/tight.
4. Connect ground lead and fuel solenoid lead as
equipped.
24 690 06 Rev. K
WARNING
WARNING
KohlerEngines.com
Control Bracket Components
A Choke Linkage
C Spring
E Nut
Install External Governor Controls
1. Install governor lever onto governor cross shaft.
2. Make sure throttle linkage is connected to governor
lever and throttle lever on carburetor.
3. Move governor lever toward carburetor as far as it
will go (wide-open throttle) and hold in position.
4. Insert a nail into hole on cross shaft and rotate shaft
counterclockwise as far as it will turn, then torque
nut to 6.8 N·m (60 in. lb.).
5. Reconnect lead wire to fuel shut-off solenoid if
equipped.
Install Throttle & Choke Controls
1. Connect choke linkage to carburetor and choke
actuator lever.
2. Mount main control bracket, and air cleaner support
bracket (if used) to cylinder heads using four screws.
Torque screws to 10.7 N·m (95 in. lb.) into new
holes, or 7.3 N·m (65 in. lb.) into used holes.
3. Connect governor spring from main control bracket
to appropriate hole in governor lever as indicated in
applicable chart. Note that hole positions are
counted from pivot point of governor lever.
Install Oil Sentry (if equipped)
™
1. Apply pipe sealant with Tefl on
or equivalent) to threads of Oil Sentry
install it into breather cover. Torque to 4.5 N·m
(40 in. lb.).
2. Connect wire lead (green) to Oil Sentry
Reassembly
A
C
F
E
D
B Control Bracket
D Governor Lever
F Throttle Linkage
(Loctite PST 592™
® ® ®
switch and
™
terminal.
™
B
85