3. Check the gap using a wire feeler gauge. Adjust
the gap to 0,76 mm (0.030 in,) by carefully
bending the ground electrode. See Figure 14.
G r o ; :
#
0.76mm
I
Electrode
-
(0,030 in,) Gap
7gure 14, Servicing Spark Plug,
4. Reinstall the spark plug into the cylinder head.
Torque the spark plug to 24.4-29J N-m
(18-22 ft. lb,).
Battery Charging
WARNING: Explosive Gas!
Batteries produce explosive hydrogen gas while being
charged. To prevent a fire or explosion, charge
batteries only in well ventilated areas. Keep sparks,
open flames, and other sources of ignition a way from
the battery at all times. Keep batteries out of the reach
of children. Remove all jewelry when servicing
batteries.
Before disconnecting the negative (-) ground cable,
make sure all switches are OFF: If ON, a spark will
occur at the ground cable terminal which could cause
an explosion if hydrogen gas or gasoline vapors are
present.
NOTE: Do not apply 12 volt DC to kill terminal of
ignition module.
Fuel System
a
WARNING: Fuel System Under Pressure!
The EFI fuel system operates under high pressure,
and the fuel filter and fuel line used must be approved
system components only Use of substitute parts can
result in system failure, gasoline leakage and possible
explosion.
Fuel Filter
Carbureted Engines: Some engines are equipped
with an in-line fuel filter. Periodically inspect the filter
and replace when dirty. Always use genuine Kohler
parts.
EFI Engines: A special, high volume, high pressure
filter with greater filtration capabilities and internal
surface area is used. See Figure 15.
Fuel Filter
Figure 15. EFI Fuel Filter and Line,
Replacement is recommended every 1500 hours, or
more frequently under extremely dusty or dirty
conditions. When replacement is necessary, always
use genuine Kohler parts.
Fuel Line
EFI Engines: A special fuel line, capable of
withstanding the high pressure of the EFI fuel system,
is used (must meet SAE R9 specifications). See Figure
15. If fuel line must be replaced, see your Kohler
Engine Service Dealer.
Carburetor Troubleshooting and
Adjustments
NOTE: Carburetor adjustments should be made only
after the engine has warmed up.
The carburetor is designed to deliver the correct
fuel-to-air mixture to the engine under all operating
conditions. To comply with current emission
regulations, the fuel mixture settings are made at the
factory and cannot be adjusted.
NOTE: To ensure correct engine operating at
altitudes above 1525 meters (SOOOft.), it may
be necessary to have an authorized Kohler
dealer install a special high-altitude jet kit in
the carburetor. If a high-altitude kit has been
installed, the engine must be reconverted to
the original jet size, before it is operated at
lower altitudes, or overheating and engine
damage can result.
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