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NOTE:

Operating

the engine with a blocked grass

screen, dirty or plugged

cooling fins, and/or

cooling shrouds

removed,

will cause engine

damage due to overheating.

ignition System

These engines use an electronic

Capacitive

Discharge

(CD) ignition

system. Other than periodically

checking/replacing

the spark plugs, no maintenance,

timing, or adjustments

are necessary

or possible

with

this system.

Check

Spark

Plugs

Every 100 hours of operation,

remove tile spark plugs,

check condition,

and reset the gap or replace with new

plugs as necessary.

The standard

Courage

spark plug

is a Champion ®RC12YC (Kohler Part No.

12 132 02-%. RFI compliant

engines

use a Champion

XC12YC (Kohler Part No. 25 132 14-S) spark plug. A

high-performance

spark plug, Champion _ Platinum

3071 (Kohler Part No. 25 132 12-S) is standard

Courage

PRO models. Equivalent

alternate

brand

plugs can also be used.

1. Before removing

the spark plug, clean the area

around the base of the plug to keep dirt and

debris out of the engine.

2. Remove the plug and check its condition.

Replace

the plug if worn or reuse is questionable.

Battery Charging

WARNING:

Explosive

GasY

Batteries produce explosive hydrogen gas while being

charged. To prevent afire or explosion, charge batteries only

in well ventilated areas. Keep sparks, open flames, and other

sources of ignition away 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.

Fuel System

Fuel Filter

Some engines are equipped

with an in-line fuel filter.

Periodically

inspect the filter and replace with a

genuine

Kohler filter every 100 operating

hours.

Fuel Line

In compliance

with CARB Tier III Emission

Regulations,

these engines use Low Permeation

SAE 30 R7 rated fuel line; certified to meet CARB

requirements.

Standard

fuel line may not be used.

Order replacement

hose by part number

through

Kohler Engine Service Dealer.

NOTE:

Do not clean the spark plug in a machine

using abrasive grit. Some grit could remain in

the spark plug and enter the engine causing

extensive

wear and damage.

3. Check the gap using a wire feeler gauge. Adjust

tile gap to 0.76 mm (0.030 in.) by carefully

bending

the ground

electrode.

See Figure 14.

Figure 15. Low Permeation

Fuel Line.

4. Reinstall the spark plug into the cylinder head.

Torque the spark plug to 24.4-29.8 N.m

(18-22 ft. lb.).

Wire Gauge

Spark Plug

Ground

0.76 mm

Electrode

(0.030 in.) Gap

Figure 14. Servicing

Spark Plug.

Carburetor

Troubleshooting

and

Adjustments

In compliance

with government

emission

standards,

the carburetor

is calibrated

to deliver the correct

fuel-to-air

mixture to the engine under all operating

conditions.

Tile high speed mixture is set at the factory

and cannot be adjusted.

The low idle fuel adjustment

screw (if equipped)

is also set at the factory and

normally

does not require

adjustment.

See Figure 16.

Engines in this series depending

on the model and

application,

may also be equipped

with a Governed

Idle System.

If the engine is equipped

with a Governed

Idle

System, refer to Models

with Governed

Idle System

when performing

any carburetor

adjustment,

as an

additional

step to the listed procedure(s)

is required.