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15

Ignition System

This engine is equipped with an electronic CD ignition

system. Other than periodically checking/replacing the

spark plugs, no maintenance or adjustments are

necessary or possible with this system.

In the event starting problems should occur which are

not corrected by replacing the spark plugs, see your

Kohler Engine Service Dealer for trouble analysis.

Check Spark Plugs

Annually or every 

200 hours

 of operation (whichever

comes first), remove the spark plugs, check condition,

and reset the gap or replace with new plugs as

necessary. Every 

500 hours

 of operation replace the

spark plugs. The standard spark plug is a Champion

®

RC14YC (Kohler Part No. 

66 132 01-S

). 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.

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

the gap to 

0.76 mm (0.030 in.)

 by carefully

bending the ground electrode. See Figure 23.

4. Reinstall the spark plug into the cylinder head.

Torque the spark plug to 

24.4-29.8 N·m

(18-22 ft. lb.)

.

Figure 23. Servicing Spark Plug.

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 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.

NOTE: Do not apply 12 volt DC to kill terminal of

ignition module.

Fuel Filter

Some engines are equipped with an in-line fuel filter.

Periodically inspect the filter and replace when dirty.

Use a genuine Kohler filter, part number 

24 050 02-S

.

Wire Gauge

Ground

Electrode

Spark Plug

0.76 mm

(0.030 in.) Gap

Summary of Contents for Aegis 20 HP

Page 1: ...KOHLER AEGIS 20 23 HP LIQUID COOLED VERTICAL CRANKSHAFT OWNER S MANUAL...

Page 2: ...njury to yourself and others To insure safe operations please read the following statements and understand their meaning Also refer to your equipment owner s manual for other important safety informat...

Page 3: ...d ground spark plug leads before servicing WARNING Electrical Shock Never touch electrical wires or components while the engine is running They can be sources of electrical shock CAUTION Electrical Sh...

Page 4: ...t is recommended Such a container is easier to handle and helps eliminate spillage during refueling Do not use gasoline left over from the previous season to minimize gum deposits in your fuel system...

Page 5: ...n engine always give the Model Specification and Serial Numbers of the engine The engine identification numbers appear on a decal affixed to the engine blower housing Include letter suffixes if there...

Page 6: ...he throttle control midway between the slow and fast positions Place the choke control into the on position 2 Start the engine by activating the key switch Release the switch as soon as the engine sta...

Page 7: ...Area page 14 High Temperature Sensor Some engines are equipped with a high temperature sensor mounted in the cooling system If the safe operating temperature is exceeded it will either shut off the en...

Page 8: ...as1 Replace fuel filter Every 25 Hours Daily or Before Starting Engine Every 100 Hours Annually or Every 200 Hours Change oil and oil filter more frequently under severe conditions Check spark plug co...

Page 9: ...e oil Change the oil and oil filter as follows see Figure 7 1 To keep dirt debris etc out of the engine clean the area around the oil fill cap dipstick before removing it 2 Remove one of the oil drain...

Page 10: ...the coolant level in the overflow reservoir and clean away any debris accumulation daily or before each use At the same time inspect the hoses and all connections for signs of leakage Servicing Engin...

Page 11: ...of all the old coolant properly according to local regulations Figure 14 Tipping Bracket Away after Removing Reservoir Cap Loosen Screws Figure 15 Removing Reservoir Figure 11 Removing Radiator Cap 4...

Page 12: ...ant Recommendations Section refer to the anti freeze manufacturers instructions on the container but do not exceed 70 anti freeze 3 Fill the radiator with the coolant mixture Allow coolant to drain in...

Page 13: ...ulation If required the screen assembly may also be separated from the upper blower housing by unsnapping it from the underside See Figures 18 19 and 20 Check all parts for wear cracks or damage Repla...

Page 14: ...e with a blocked air intake screen dirty or plugged radiator cooling fins and or cooling shrouds removed will cause engine damage due to overheating 3 Unhook the element retaining strap and remove the...

Page 15: ...ld remain in the spark plug and enter the engine causing extensive wear and damage 3 Check the gap using a wire feeler gauge Adjust the gap to 0 76 mm 0 030 in by carefully bending the ground electrod...

Page 16: ...n at half throttle for 5 to 10 minutes to warm up The engine must be warm before making final settings Low idle speed RPM setting 1 Place the throttle control into the idle or slow position Set the lo...

Page 17: ...uel system must be completely emptied or the gasoline must be treated with a stabilizer to prevent deterioration If you choose to use a stabilizer follow the manufacturers recommendations and add the...

Page 18: ...n residential are warranted for one 1 year from date of purchase except catalytic mufflers which are warranted for two 2 years This warranty does not apply to defects caused by casualty or unreasonabl...

Page 19: ...or warranty repairs the engine must be presented to a Kohler Co service center as soon as a problem exists Call 1 800 544 2444 or access our web site at www kohlerengines com for the names of the near...

Page 20: ...maintenance of the engine Kohler Co recommends that all receipts and records covering the performance of regular maintenance be retained in case questions arise If the engine is resold during the warr...

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