Kohler Command CH20 Service Manual page 83

Install Carburetor (Mechanical Governor)
Explosive Fuel can cause fi res and severe
burns.
If a gaseous odor is detected, ventilate area
and contact an authorized service technician.
LPG is extremely fl ammable and is heavier than air
and tends to settle in low areas where a spark or fl ame
could ignite gas. Do not start or operate this engine
in a poorly ventilated area where leaking gas could
accumulate and endanger safety of persons in area.
NG is extremely fl ammable, is lighter than air, and
rises. Do not start or operate this engine in a poorly
ventilated area where leaking gas could accumulate
and endanger safety of persons in area.
To ensure personal safety, installation and repair of
LPG/NG fuel supply systems must be performed only
by qualifi ed LPG/NG system technicians. Improperly
installed and maintained LPG/NG equipment could
cause fuel supply system or other components to
malfunction, causing gas leaks.
Observe federal, state and local laws governing LPG/
NG fuel, storage, and systems.
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
attach ground lead to carburetor mounting screw.
3. Torque carburetor mounting screws or nuts to
6.2-7.3 N·m (55-65 in. lb.).
Install Carburetor and Electronic Governor
A
G
F
H
A Carburetor Fitting
C Flywheel Side
E Bushing
Electronic Governor
G
Assembly
1. Install a new carburetor gasket. Make sure all holes
align and are open.
2. Place carburetor in position on intake manifold/
carburetor gasket, then start screws. While holding
carburetor towards fl ywheel side of engine, torque
screws to 6.2-7.3 N·m (55-65 in. lb.).
24 690 30 Rev. G
WARNING
B
D
E
B Carburetor
Carburetor Throttle
D
Lever
F Throttle Linkage
Electronic Governor
H
Connector
KohlerEngines.com
3. Reconnect fuel hose to carburetor fi tting and secure
hose clamp.
4. Reconnect throttle linkage in carburetor throttle lever
and secure with bushing.
5. Position electronic governor assembly on crankcase
and start screws but do not tighten them.
6. Lightly hold throttle lever in idle position. Use a
straight edge ruler and adjust governor assembly
location to measure 2.54 cm (1 inch) from back of
throttle linkage. Torque screws to 7.3 N·m (65 in. lb.).
7. Connect electronic governor to wiring harness.
Install LPG/NG Components
1. Install regulator bracket to crankcase with screws
and torque to 22.6 N·m (200 in. lb.).
2. Install regulator to bracket with screws and torque to
24.4 N·m (216 in. lb.). Attach vacuum line and fuel
lines to regulator.
3. Secure vaporizer to bracket (if equipped) with 2
screws. Torque 3/8 in. screw to 29.4 N·m (260 in. lb.)
and 1/4 in. screw to 7.9 N·m (70 in. lb.).
4. Attach fuel lines from regulator to lock-off /fi lter and
carburetor.
C
Reassembly
83