Engine Service Manual

68
Disassembly/Inspection and Service
KohlerEngines.com 32 690 03 Rev. I
Remove Air Cleaner and Carburetor
WARNING
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.
Smart-Choke
™
and eChoke
™
Carburetor/Air Cleaner
Components
A
B
F
C
D
E
A
G
D
H
A Air Cleaner Base B Breather Hose
C Ground Lead D Solenoid Lead
E
Smart-Choke
™
Bracket Assembly
F Thermostat
G
eChoke
™
Bracket
Assembly
H Stepper Motor
NOTE: On engines equipped with eChoke
™,
stepper
motor has a special retract routine that can be
activated to ensure motor is in correct position
prior to removal or upon replacement of stepper
motor when a problem is shown to exist with
stepper motor assembly and carburetor.
Activation of this routine will occur by initiating
three (3) consecutive Key On–Off cycles. Every
Key On and Off should be > 2 seconds and <
3.5 seconds. Note that if no other connections
are disturbed, stepper motor will be repositioned
at next key ON and master module will go back
to normal choke operation mode.
NOTE: Do not remove or loosen thermostat screws.
Position is set at factory.
1. Remove carburetor/air cleaner base mounting nuts
and disconnect breather hose.
2. Remove air cleaner element and precleaner (if
equipped) from air cleaner base for servicing.
3. Disconnect ground lead and fuel shut-off solenoid
lead (if equipped).
4. Remove Smart-Choke
™
or eChoke
™
bracket
assembly (if equipped). Remove air cleaner base
and gasket.
5. Remove carburetor, throttle linkage and governor
lever as an assembly.
6. Remove carburetor gasket.
7. If necessary, carburetor, throttle linkage and
governor lever can be separated. Reattach bushings
to linkage following separation to avoid losing them.
Remove Electric Starter Motor
1. Disconnect leads from starter.
2. Remove screws and starter.
Remove Inner Baffl es
Remove mounting screws securing inner baffl es to
crankcase. Note position of any lifting bracket(s).
Remove inner baffl es.
Remove Ignition Modules
NOTE: Engines equipped with Smart-Choke
™
have a
defl ector support tab on #2 cylinder ignition
module. Note position for reassembly.
1. Rotate fl ywheel so magnet is away from modules.
2. Disconnect lead from each ignition module.
3. Remove mounting screws and ignition modules.
Note position of ignition modules.