Kohler CH6 User Manual

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Page 1

COMMAND 6 HP

HORIZONTAL CRANKSHAFT

OWNER'S MANUAL

Page 2

Safety Precautions

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 information. This manual contains safety precautions which are explained below. Please read carefully.

WARNING

Warning is used to indicate the presence of a hazard that can cause severe personal injury, death, or substantial property damage if the warning is ignored.

CAUTION

Caution is used to indicate the presence of a hazard that will or can cause minor personal injury or property damage if the caution is ignored.

NOTE

Note is used to notify people of installation, operation, or maintenance information that is important but not hazard-related.

For Your Safety!

These precautions should be followed at all times. Failure to follow these precautions could result in injury to yourself and others.

WARNING

Explosive Fuel can cause fires and severe burns.

Stop engine before filling fuel tank.

Explosive Fuel!

Gasoline is extremely flammable and its vapors can explode if ignited. Store gasoline only in approved containers, in well ventilated, unoccupied buildings, away from sparks or flames. Do not fill the fuel tank while the engine is hot or running, since spilled fuel could ignite if it comes in contact with hot parts or sparks from ignition. Do not start the engine near spilled fuel. Never use gasoline as a cleaning agent.

WARNING

Rotating Parts can cause severe injury.

Stay away while engine is in operation.

Rotating Parts!

Keep hands, feet, hair, and clothing away from all moving parts to prevent injury. Never operate the engine with covers, shrouds, or guards removed.

CAUTION

Electrical Shock can cause injury.

Do not touch wires while engine is running.

WARNING

Hot Parts can cause severe burns.

Do not touch engine while operating or just after stopping.

Hot Parts!

Engine components can get extremely hot from operation. To prevent severe burns, do not touch these areas while the engine is running, or immediately after it is turned off. Never operate the engine with heat shields or guards removed.

California

Proposition 65 Warning

Engine exhaust from this product contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.

Electrical Shock!

Never touch electrical wires or components while the engine is running. They can be sources of electrical shock.

Page 3

Safety Precautions (Cont.)

WARNING

Accidental Starts can cause severe injury or death.

Disconnect and ground spark plug lead before servicing.

Accidental Starts!

Disabling engine. Accidental starting can cause severe injury or death. Before working on the

engine or equipment, disable the engine as follows: 1) Disconnect the spark plug lead(s). 2) Disconnect negative (-) battery cable from battery.

WARNING

Carbon Monoxide can cause severe nausea, fainting or death.

Do not operate engine in closed or confined area.

Lethal Exhaust Gases!

Engine exhaust gases contain poisonous carbon monoxide. Carbon monoxide is odorless, colorless, and can cause death if inhaled. Avoid inhaling exhaust fumes, and never run the engine in a closed building or confined area.

WARNING

Explosive Gas can cause fires and severe acid burns.

Charge battery only in a well ventilated area. Keep sources of ignition away.

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.

Congratulations  You have selected a fine four-cycle, single cylinder, air-cooled engine. Kohler designs long life strength and on-the-job durability into each enginemaking a Kohler engine dependabledependability you can count on. Here are some reasons why:

 Efficient overhead valve design and splash lubrication provide maximum power, torque, and reliability under

all operating conditions.

 Dependable, maintenance free electronic ignition ensures fast, easy starts time after time.

 Kohler engines are easy to service. All routine service areas (like the oil fill/check plug, air cleaner, spark

plug, and carburetor) are easily and quickly accessible.

 Parts subject to the most wear and tear (like the cylinder liner, crankshaft, and camshaft) are made from

precision formulated cast iron. Because the cylinder liner can be rebored, these engines can last even longer.

 Every Kohler engine is backed by a worldwide network of over 10,000 distributors and dealers. Service

support is just a phone call away. Call 1-800-544-2444 (U.S. & Canada) for Sales & Service assistance.

To keep your engine in top operating condition, follow the maintenance procedures in this manual.

Page 4

Exhaust Pipe

Cooling Air Outlet

Muffler Shield

Fuel Tank Cap

3 U.S. Quart Capacity Fuel Tank

Start-Stop Switch (Optional)

Oil SentryTM Light

Spark Plug

Valve Cover

Choke Lever

Carburetor

Air Cleaner Cover

Oil Drain Plug

Retractable Starter Handle

Figure 1. Location of Controls and Service Points on C6.

Oil Recommendations

Using the proper type and weight of oil in the crankcase is extremely important. So is checking oil daily and changing oil regularly. Failure to use the correct oil, or using dirty oil, causes premature engine wear and failure.

Oil Type

Use high quality detergent oil of API (American Petroleum Institute) service class SG, SH, SJ or higher. Select the viscosity based on the air

temperature at the time of operation as shown in the following table.

Fuel Shut-Off Valve

Control Panel

Throttle Lever

Cooling Air Intake

Retractable Starter Housing

Air Cleaner Retaining Knob

Oil Drain & Oil Fill/Check Plug on Opposite Side

NOTE: Using other than service class SG, SH, SJ or

higher oil or extending oil change intervals longer than recommended can cause engine damage.

A logo or symbol on oil containers identifies the API service class and SAE viscosity grade. See Figure 3.

*Use of synthetic oil having 5W-20 or 5W-30 rating is acceptable, up to 40°F. **Synthetic oils will provide better starting in extreme cold (below -10°F).

Figure 2. Viscosity Grades Table.

Figure 3. Oil Container Logo.

Refer to Maintenance Instructions beginning on page 8 for detailed oil check, oil change, and oil filter change procedures.

Page 5

Fuel Recommendations

WARNING: Explosive Fuel!

Engine Identification Numbers

When ordering parts, or in any communication involving an engine, always give the Model, Specification, and Serial Numbers of the engine.

The engine identification numbers appear on a decal affixed to the engine shrouding. Include letter suffixes, if there are any.

Record your engine identification numbers on the identification label below (Figure 4) for future reference.

General Recommendations

Purchase gasoline in small quantities and store in clean, approved containers. A container with a capacity of 2 gallons or less with a pouring spout 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 and to insure easy starting.

Do not add oil to the gasoline.

Do not overfill the fuel tank. Leave room for the fuel to expand.

Fuel Type

For best results use only clean, fresh, unleaded gasoline with a pump sticker octane rating of 87 or higher. In countries using the Research method, it should be 90 octane minimum.

Unleaded gasoline is recommended as it leaves less combustion chamber deposits. Leaded gasoline may be used in areas where unleaded is not available and exhaust emissions are not regulated. Be aware however, that the cylinder head will require more frequent service.

Gasoline/Alcohol blends

Gasohol (up to 10% ethyl alcohol, 90% unleaded gasoline by volume) is approved as a fuel for Kohler engines. Other gasoline/alcohol blends are not approved.

IMPORTANT ENGINE INFORMATION THIS ENGINE MEETS U.S. EPA PHASE 1 AND CALIFORNIA 2006 AND LATER EMISSION CONTROL REGULATIONS FOR SI SORE*

FAMILY DISPL. (CC) MODEL NO. SPEC. NO. SERIAL NO.

EMISSION COMPLIANCE PERIOD: EPA: CARB:

THIS ENGINE IS CERTIFIED TO OPERATE ON:

REFER TO OWNER'S MANUAL FOR SAFETY, MAINTENANCE SPECS AND ADJUSTMENTS.

FOR SALES/SERVICE IN US/CANADA, CALL:

KOHLER CO. KOHLER, WISCONSIN USA

1-800-544-2444

www.kohlerengines.com

*Small Off-Road Engines

Figure 4. Engine Identification Label.

The Emission Compliance Period referred to on the Emission Control or Air Index label indicates the number of operating hours for which the engine has been shown to meet CARB emission requirements. The following table provides the Engine Compliance Period (in hours) associated with the category descriptor found on the certification label.

Emission Compliance Period (Hours)

CARB

Moderate 125 hours

Intermediate 250 hours

Extended 500 hours

Gasoline/Ether blends

Methyl Tertiary Butyl Ether (MTBE) and unleaded gasoline blends (up to a maximum of 15% MTBE by volume) are approved as a fuel for Kohler engines. Other gasoline/ether blends are not approved.

Refer to certification label for engine displacement.

Exhaust Emission Control System for model CH6 is EM.

Page 6

Operating Instructions

Also read the operating instructions of the equipment this engine powers.

Pre-Start Checklist

 Check oil level. Add oil if low. Do not overfill.

 Check fuel level. Add fuel if low.

 Check cooling air intake areas and external

surfaces of engine. Make sure they are clean and unobstructed.

 Check that the air cleaner components and all

shrouds, equipment covers, and guards are in place and securely fastened.

 Check that any clutches or transmissions are

disengaged or placed in neutral.

WARNING: Lethal Exhaust Gases!

Cold Weather Starting Hints

1. Be sure to use the proper oil for the temperature expected. See Figure 2 on page 4.

2. Declutch all possible external loads.

Choke Lever

Choke On

Choke Off

Figure 6. Location of Choke Lever.

Starting

1. Open fuel shut-off valve.

2. For a Cold Engine  Place the throttle control midway between the slow and fast positions. See Figure 5. Place the choke control into the on position. See Figure 6.

For a Warm Engine (normal operating temperatures)  Place the throttle/choke control midway between the slow and fast

positions. Place the choke control in the on position. See Figure 6.

3. A warm battery has much more starting capacity than a cold battery.

4. Use fresh winter grade fuel. NOTE: Winter grade gasoline has higher volatility to improve starting. Do not use gasoline left over from summer.

Figure 5. Control Panel.

3. Place start-stop switch in the start position if so

equipped. See Figure 5.

4. Start the engine as follows:

For Retractable Start Engine  SLOWLY pull the starter handle until just past compression  STOP! Return starter handle, pull firmly with a smooth, steady motion to start. Pull the handle straight out to avoid excessive rope wear from the starter rope guide.

Extend the starting rope periodically and check its condition. If the rope is frayed, have it replaced immediately by your Kohler Engine Service Dealer.

WARNING: Accidental Starts!

Before extending and checking retractable starter rope, remove the spark plug lead to prevent the engine from starting accidentally. Ground the lead to prevent sparks that could cause fires. Make sure the equipment is in neutral.

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For an Electric Start Engine  Activate the starter switch. Release the switch as soon as the engine starts.

NOTE: Do not crank the engine continuously for

more than 10 seconds at a time. If the engine does not start, allow a 60 second cool down period between starting attempts. Failure to follow these guidelines can burn out the starter motor.

Battery

A 12 volt battery is normally used. Refer to the operating instructions of the equipment this engine powers for specific battery requirements.

If the battery charge is not sufficient to crank the engine, recharge the battery (see page 11).

Operating

NOTE: If the engine develops sufficient speed to

disengage the starter but does not keep running (a false start), engine rotation must be allowed to come to a complete stop before attempting to restart the engine. If the starter is engaged while the flywheel is rotating, the starter pinion and flywheel ring gear may clash, resulting in damage to the starter.

If the starter does not turn the engine over, shut off starter immediately. Do not make further attempts to start the engine until the condition is corrected. Do not jump start using another battery (refer to "Battery"). See your Kohler Engine Service Dealer for trouble analysis.

3. For a Cold Engine  Gradually return the choke control to the off position after the engine starts and warms up.

The engine/equipment may be operated during the warm up period, but it may be necessary to leave the choke partially on until the engine warms up.

4. For a Warm Engine  Return choke to "off" position as soon as engine starts.

Angle of Operation

This engine will operate continuously at angles up to 20°. Check oil level to assure crankcase oil is up to the point of overflowing the filler neck. See Figure 8.

Refer to the operating instructions of the equipment this engine powers. Because of equipment design or application, there may be more stringent restrictions regarding the angle of operation.

NOTE: Do not operate this engine continuously at

angles exceeding 20° in any direction. Engine damage could result from insufficient lubrication.

Cooling

NOTE: If debris builds up on the grass screen or

other cooling air intake areas, stop the engine immediately and clean. Operating the engine with blocked or dirty air intake and cooling areas can cause extensive damage due to overheating.

WARNING: Hot Parts!

Engine components can get extremely hot from operation. To prevent severe burns, do not touch these areas while the engine is runningor immediately after it is turned off. Never operate the engine with heat shields or guards removed.

Stopping

1. If possible, remove the load.

2. Move the throttle control to the slow or low idle position. Allow the engine to run at idle for 30-60 seconds.

3. Move the throttle control to the stop position. Or if equipped with optional startstop switch, move the switch into the stop position.

4. Close fuel shut-off valve.

Engine Speed

NOTE: Do not tamper with the governor setting to

increase the maximum engine speed. Overspeed is hazardous and will void the engine warranty.

Page 8

Maintenance Instructions

Maintenance, repair, or replacement of the emission control devices and systems, which are being done at the customers expense, may be performed by any non-road engine repair establishment or individual. Warranty repairs must be performed by an authorized Kohler service outlet.

WARNING: Accidental Starts!

Disabling engine. Accidental starting can cause severe injury or death. Before working on the engine or equipment, disable the engine as follows: 1) Disconnect the spark plug lead(s). 2) Disconnect negative (-) battery cable from battery.

Maintenance Schedule

These required maintenance procedures should be performed at the frequency stated in the table. They should also be included as part of any seasonal tune-up.

Maintenance RequiredFrequency

 Fill fuel tank.

Daily or Before

Starting Engine

Every 25 Hours

Every 100 Hours

Every 200 Hours

Annually or

Every 500 Hours

¹Perform these maintenance procedures more frequently under extremely dusty, dirty conditions. ²Have a Kohler Engine Service Dealer perform this service.

 Check oil level.  Check air cleaner for dirty¹, loose, or damaged parts.  Check air intake and cooling areas, clean as necessary¹.

 Service precleaner element¹.  Replace air cleaner element¹.

 Change oil¹.  Remove cooling shrouds and clean cooling areas¹.

 Check spark plug condition and gap.  Have bendix starter drive serviced2.

 Have valve to rocker arm clearance checked².  Have Oil Sentry float switch checked2.

Check Oil Level

The importance of checking and maintaining the proper oil level in the crankcase cannot be overemphasized. Check oil BEFORE EACH USE as follows:

1. Make sure the engine is stopped, level, and is cool so the oil has had time to drain into the sump.

2. To keep dirt, debris, etc., out of the engine, clean the area around the oil fill/check plug before removing it.

3. Unthread and remove the oil fill/check plug.

4. The level should be up to but not over, the point of overflowing the filler neck.

Filler Neck

Oil Drain Plug

Oil Fill/Check Plug

Figure 7. Location of Oil Drain and Check Plugs.

NOTE: Just because you can see oil in the crankcase

doesn't mean the level is in the safe range. Bring the level up to the point of overflowing the filler neck.

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Filler Neck

Bring Level Up To Point Of Overflow

Change the oil as follows (see Figures 7 and 8):

1. To keep dirt, debris, etc., out of the engine, clean the area around the oil fill cap/dipstick before removing it.

2. Remove the oil drain plug and oil fill/check plug. Be sure to allow ample time for complete drainage.

3. Reinstall the drain plug. Make sure it is tightened to

17.6 N·m (13 ft. lb.) torque.

Figure 8. Cutaway Showing Proper Oil Level.

5. If the level is low, add oil of the proper type, up to the point of overflowing the filler neck. (Refer to Oil Type on page 4.) Always check the level before adding more oil.

NOTE: To prevent extensive engine wear or

damage, always maintain the proper oil level in the crankcase. Never operate the engine with the oil level below the point of overflowing the filler neck.

Oil Sentry

Some engines are equipped with an optional Oil Sentry oil level switch. If the oil level decreases below an acceptable level, the Oil Sentry will either shut off the engine or activate a warning signal, depending on the application.

NOTE: Make sure the oil level is checked BEFORE

EACH USE and is maintained up to the point of overflowing the filler neck. This includes engines equipped with Oil Sentry.

4. Fill the crankcase, with new oil, of the proper type, up to the point of overflowing the filler neck. Refer to Oil Type on page 4. Always check the level before adding more oil.

5. Reinstall the oil fill/check plug and tighten securely.

NOTE: To prevent extensive engine wear or

damage, always maintain the proper oil level in the crankcase. Never operate the engine with the oil level below the point of overflowing the filler neck.

Service Precleaner and Air Cleaner Element

This engine is equipped with a replaceable, high density paper air cleaner element. All engines are also equipped with an oiled, foam precleaner which covers the paper element. See Figure 9.

Check the air cleaner daily or before starting the engine. Check for a buildup of dirt and debris around the air cleaner system. Keep this area clean. Also check for loose or damaged components. Replace all bent or damaged air cleaner components.

Change Oil

For a new engine, change oil after the first 20 hours of operation. Thereafter, change oil after every 100

hours of operation.

For an overhauled engine, use 10W-30 service class

SG, SH, SJ or higher oil for the first 5 hours of operation. Change the oil after this initial run-in period. Refill with service class SG, SH, SJ or higher oil as specified in the Viscosity Grades table (Figure 2) on page 4.

Change the oil while the engine is still warm. The oil will flow freely and carry away more impurities. Make sure the engine is level when filling, checking, or changing the oil.

NOTE: Operating the engine with loose or damaged

air cleaner components could allow unfiltered air into the engine causing premature wear and failure.

Service Precleaner

Wash and reoil the precleaner every 25 hours of operation (more often under extremely dusty or dirty conditions).

1. Loosen air cleaner cover retaining knob and remove the cover.

2. Remove the precleaner from the paper element.

3. Wash the precleaner in warm water with detergent. Rinse the precleaner thoroughly until all traces of detergent are eliminated. Squeeze out excess water (do not wring). Allow the precleaner to air dry.

Page 10

4. Saturate the precleaner with new engine oil. Squeeze out all excess oil.

5. Reinstall the precleaner over the paper element.

6. Reinstall air cleaner cover.

7. Tighten the air cleaner cover retaining knob.

5. When servicing the air cleaner, check the air cleaner base. Make sure it is secured and not bent or damaged. Also check the air cleaner element cover for damage or improper fit. Replace all bent or damaged air cleaner components.

6. Install new or serviced paper element and components as follows:

Service Paper Element

Every 100 hours of operation (more often under extremely dusty or dirty conditions), replace the paper element.

1. Loosen air cleaner cover retaining knob and remove the cover.

2. Remove the precleaner from the paper element.

3. Remove the wing nut, washer, and element cover with grommet. Remove paper element.

4. Replace a dirty, bent, or damaged element with a genuine Kohler element. Do not wash the paper element or use pressurized air, as this will damage the element. Handle new elements carefully; do not use if the sealing surfaces are bent or damaged.

Precleaner

a. Position paper element on base.

b. Slide element cover with grommet then

washer onto stud, secure with wing nut.

c. Reinstall the precleaner over the paper

element.

d. If the air cleaner cover ring separated from

the element cover, reinstall it.

e. Reinstall air cleaner cover and secure with

the retaining knob.

Air Cleaner Base

Figure 9. Air Cleaner Elements.

Paper Element

Element Cover

Air Cleaner Cover Ring

Grommet

Air Cleaner Cover

Washer

Wing Nut

Cover Retaining Knob

Page 11

Clean Air Intake/Cooling Areas

To ensure proper cooling, make sure the grass screen, cooling fins, and other external surfaces of the engine are kept clean at all times.

Every 100 hours of operation (more often under extremely dusty, dirty conditions), remove the blower housing and other cooling shrouds. Clean the cooling fins and external surfaces as necessary. Make sure the cooling shrouds are reinstalled.

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.

Wire Gauge

Spark Plug

Ignition System

This engine is equipped with a dependable electronic magneto ignition system. Other than periodically checking/replacing the spark plug, no maintenance, timing, or adjustments are necessary or possible with this system.

In the event starting problems should occur which are not corrected by replacing the spark plug, see your Kohler Engine Service Dealer for trouble analysis.

Check Spark Plug

Every 200 hours of operation, remove the spark plug, check condition, and reset the gap or replace with new plug as necessary. Use a Champion® type RC12YC (or equivalent) spark plug.

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 1.02 mm (0.040 in.) by carefully bending the ground electrode. See Figure 10.

Ground Electrode

Figure 10. Servicing Spark Plug.

1.02 mm

(0.040 in.) Gap

Battery Charging

WARNING: Explosive Gas!

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.

4. Reinstall the spark plug into the cylinder head. Torque the spark plug to 24.4-29.8 N·m (18-22 ft. lb.).

Page 12

Carburetor Troubleshooting and Adjustments

NOTE: Carburetor adjustments should be made only

after the engine has warmed up.

This engine is equipped with a fixed main jet carburetor. See Figure 11.

Choke Lever

Low Idle Fuel Adjusting Needle

Figure 11. Fixed Main Jet Carburetor.

The carburetor is designed to deliver the correct fuel-to-air mixture to the engine under all operating conditions. The main fuel jet is calibrated at the factory and is not adjustable. The low idle fuel adjusting needle is also set at the factory and normally does not need adjustment.

Low Idle Speed Adjusting Screw

 Make sure the air cleaner element is clean and all

air cleaner element components are fastened securely.

If, after checking the items listed above, the engine is hard to start, runs roughly, or stalls at low idle speed, it may be necessary to adjust or service the carburetor.

Adjust Carburetor

NOTE: Certified engines may have a fixed idle or

limiter cap on the idle fuel adjusting needle. Step 2 can only be performed within the limits allowed by the cap.

1. Start the engine and run at half throttle for 5 to 10 minutes to warm up. The engine must be warm before making final settings (steps 2 and 3).

2. Low Idle Fuel Needle Setting: Place the throttle into the idle or slow position.

Turn the low idle fuel adjusting needle out (counterclockwise) from the preliminary setting until engine speed decreases (rich). Note the position of the needle.

Now turn the adjusting needle in (clockwise). The engine speed may increase, then it will decrease as the needle is turned in (lean). Note the position of the needle.

Set the adjusting needle midway between the rich and lean settings. See Figure 12.

Troubleshooting

If engine troubles are experienced that appear to be fuel system related, check the following areas before adjusting the carburetor.

 Make sure the fuel tank is filled with clean, fresh

gasoline.

 Make sure the fuel tank cap vent is not blocked

and that it is operating properly.

 If the fuel tank is equipped with a shut-off valve,

make sure it is open.

 If the engine is equipped with an in-line fuel filter,

make sure it is clean and unobstructed. Replace the filter if necessary.

 Make sure fuel is reaching the carburetor. This

includes checking the fuel lines for restrictions or faulty components, replace as necessary.

Adjust to Midpoint

Rich

Figure 12. Optimum Low Idle Fuel Setting.

3. Low Idle Speed Setting: Place the throttle control into the idle or slow position. Set the low idle speed to 1200 RPM* (± 75 RPM) by turning the low idle speed adjusting screw in or out. Check the speed using a tachometer.

Lean

Page 13

*NOTE: The actual low idle speed depends on the application  refer to equipment manufacturers

recommendations. The recommended low idle speed for basic engines is 1200 RPM. To ensure best results when setting the low idle fuel needle, the low idle speed must not exceed 1500 RPM.

Troubleshooting

When troubles occur, be sure to check the simple causes which, at first, may seem to obvious to be considered. For example, a starting problem could be caused by an empty fuel tank. Some common causes of engine troubles are listed in the following table.

Do not attempt to service or replace major engine components, or any items that require special timing or adjustment procedures. Have your Kohler Engine Service Dealer do this work.

Possible Cause No Improper Dirt In Dirty Incorrect Engine Dirty Air Faulty Problem Fuel Fuel Fuel Line Grass Screen Oil Level Overloaded Cleaner Spark Plug

Will Not Start   Hard Starting     

Stops Suddenly   Lacks Power 

Operates Erratically    Knocks or Pings   

Skips or Misfires   Backfires 

Overheats  High Fuel Consumption 

Storage

If the engine will be out of service for two months or more, use the following storage procedure:

1. Clean the exterior surfaces of the engine.

2. Change the oil while the engine is still warm from operation. See Change Oil on page 9.

3. The fuel 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 correct amount for the capacity of the fuel system. Fill the fuel tank with clean, fresh gasoline. Run the engine for 2-3 minutes to get stabilized fuel into the carburetor.

To empty the system, run the engine until the tank and system are empty.

4. Remove the spark plug. Add one tablespoon of engine oil into the spark plug hole. Install the plug, but do not connect the plug lead. Crank the engine two or three revolutions.

Parts Ordering

The engine Model, Specification, and Serial Numbers are required when ordering replacement parts from your Kohler Engine Service Dealer. These numbers are found on the identification plate which is affixed to the engine shrouding. Include letter suffixes if there are any. See Engine Identification Numbers on page 5.

Always insist on genuine Kohler parts. All genuine Kohler parts meet strict standards for fit, reliability, and performance.

Major Repair

Major repair information is available in Kohler Engine Service Manuals. However, major repair generally requires the attention of a trained mechanic and the use of special tools and equipment. Your Kohler Engine Service Dealer has the facilities, training, and genuine Kohler replacement parts necessary to perform this service. For Sales & Service assistance call 1-800-544-2444 (U.S. & Canada) or contact your Kohler Engine Dealer or Service Distributor, they're in the Yellow Pages under Engines-Gasoline.

5. Remove the spark plug. Cover the spark plug hole with your thumb, and turn the engine over until the piston is at the top of its stroke. (Pressure against the thumb is greatest.) Reinstall the plug, but do not connect the plug lead.

6. Store the engine in a clean, dry place.

Page 14

Model Designation

Model CH6T for example: C designates Command engine, H designates horizontal crankshaft, and 6 designates horsepower. A suffix letter designates a specific version as follows:

Suffix Designates

T Retractable Start ST Electric/Retractable Start GT Generator Application/Retractable Start PT Pump/Retractable Start EP Electric Plant

Specifications

Model:.............................................................................................................................................. CH6

Bore:...................................................................................................................... mm (in.)........... 67 (2.64)

Stroke: ................................................................................................................... mm (in.) ........... 51 (2.01)

Displacement:........................................................................................................ in3 (cm3) ........... 180 (10.98)

Power (@ 4000 RPM): .......................................................................................... kW (HP)........... 4.47 (6*)

Max. Torque: ................................................................................N·m (ft. lb.) @ 2400 RPM ........... 11.74 (8.66)

Compression Ratio: ......................................................................................................................... 8.5:1

Weight (Approx.): ..................................................................................................... kg (lb.) ........... 20.4 (45)

Oil Capacity (Approx.):.............................................................................. liters (U.S. pints)........... 0.60 (1.3)

Fuel Tank Capacity (Approx.):................................................................. liters (U.S. quarts)........... 3.18 (3)

Exhaust Emission Control System for model CH6 is EM.

*Horsepower ratings are established in accordance with Society of Automotive Engineers  Small Engine Test Code  J1995 GROSS. Kohler Co. reserves the right to change product specifications, design, and standard equipment without notice and without incurring obligation.

LIMITED 2 YEAR COMMAND ENGINE WARRANTY

We warrant to the original consumer that each new COMMAND engine sold by us will be free from manufacturing defects in materials or workmanship in normal service for a period of two (2) years from date of purchase, provided it is operated and maintained in accordance with Kohler Co.s instructions and manuals.

Our obligation under this warranty is expressly limited, at our option, to the replacement or repair at Kohler Co., Kohler, Wisconsin 53044, or at a service facility designated by us of such parts as inspection shall disclose to have been defective.

EXCLUSIONS: Mufflers on engines used commercially (non-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 unreasonable use, including faulty repairs by others and failure to provide reasonable and necessary maintenance.

The following items are not covered by this warranty:

Engine accessories such as fuel tanks, clutches, transmissions, power-drive assemblies, and batteries, unless supplied or installed by Kohler Co. These are subject to the warranties, if any, of their manufacturers.

WE SHALL NOT BE LIABLE FOR SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES OF ANY KIND, including but not limited to labor costs or transportation charges in connection with the repair or replacement of defective parts.

ANY IMPLIED OR STATUARY WARRANTIES, INCLUDING WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, ARE EXPRESSLY LIMITED TO THE DURATION OF THIS WRITTEN WARRANTY. We make no other express warranty, nor is any one authorized to make any in our behalf.

Some states do not allow limitations on how long an implied warranty lasts, or the exclusion or limitation of incidental or consequential damages, so the above limitation or exclusion may not apply to you.

This warranty gives you specific legal rights, and you may also have other rights which vary from state to state.

TO OBTAIN WARRANTY SERVICE: Purchaser must bring the engine to an authorized Kohler service facility. For the facility nearest you, consult your Yellow Pages or write Kohler Co., Attn: Engine Warranty Service Dept., Kohler, Wisconsin, 53044.

ENGINE DIVISION, KOHLER CO., KOHLER, WISCONSIN 53044

Page 15

KOHLER CO.

FEDERAL AND CALIFORNIA EMISSION CONTROL SYSTEMS

LIMITED WARRANTY

SMALL OFF-ROAD ENGINES

The U.S. Environmental Protection Agency (EPA), the California Air Resources Board (CARB), and Kohler Co. are pleased to explain the Federal and California Emission Control Systems Warranty on your small off-road equipment engine. For California, engines produced in 1995 and later must be designed, built and equipped to meet the states stringent anti-smog standards. In other states, new 1997 and later model year engines must be designed, built and equipped, to meet the U.S. EPA regulations for small non-road engines. The engine must be free from defects in materials and workmanship which cause it to fail to conform with U.S. EPA standards for the first two years of engine use from the date of sale to the ultimate purchaser. Kohler Co. must warrant the emission control system on the engine for the period of time listed above, provided there has been no abuse, neglect or improper maintenance.

The emission control system may include parts such as the carburetor or fuel injection system, the ignition system, and catalytic converter. Also included are the hoses, belts and connectors and other emission related assemblies.

Where a warrantable condition exists, Kohler Co. will repair the engine at no cost, including diagnosis (if the diagnostic work is performed at an authorized dealer), parts and labor.

MANUFACTURERS WARRANTY COVERAGE

Engines produced in 1995 or later are warranted for two years in California. In other states, 1997 and later model year engines are warranted for two years. If any emission related part on the engine is defective, the part will be repaired or replaced by Kohler Co. free of charge.

OWNERS WARRANTY RESPONSIBILITIES

(a) The engine owner is responsible for the performance of the required maintenance listed in the owners manual. Kohler Co.

recommends that you retain all receipts covering maintenance on the engine, But Kohler Co. cannot deny warranty solely for the lack of receipts or for your failure to assure that all scheduled maintenance was performed.

(b) Be aware, however, that Kohler Co. may deny warranty coverage if the engine or a part has failed due to abuse, neglect, improper

maintenance or unapproved modifications.

(c) For 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 website at www.kohlerengines.com, for the names of the nearest service centers. The warranty repairs should be completed in a reasonable amount of time, not to exceed 30 days.

If you have any questions regarding warranty rights and responsibilities, you should contact Kohler Co. at 1-920-457-4441 and ask for an Engine Service representative.

COVERAGE

Kohler Co. warrants to the ultimate purchaser and each subsequent purchaser that the engine will be designed, built and equipped, at the time of sale, to meet all applicable regulations. Kohler Co. also warrants to the initial purchaser and each subsequent purchaser, that the engine is free from defects in materials and workmanship which cause the engine to fail to conform with applicable regulations for a period of two years.

Engines produced in 1995 or later are warranted for two years in California. For 1997 and later model years, EPA requires manufacturers to warrant engines for two years in all other states. These warranty periods will begin on the date the engine is purchased by the initial purchaser. If any emission related part on the engine is defective, the part will be replaced by Kohler Co. at no cost to the owner. Kohler Co. is liable for damages to other engine components caused by the failure of a warranted part still under warranty.

Kohler Co. shall remedy warranty defects at any authorized Kohler Co. engine dealer or warranty station. Warranty repair work done at an authorized dealer or warranty station shall be free of charge to the owner if such work determines that a warranted part is defective.

Listed below are the parts covered by the Federal and California Emission Control Systems Warranty. Some parts listed below may require scheduled maintenance and are warranted up to the first scheduled replacement point for that part. The warranted parts are:

 Oxygen sensor (if equipped)  Ignition module(s) with high tension lead  Intake manifold (if equipped)  Gaseous fuel regulator (if equipped)  Exhaust manifold (if equipped)  Electronic control unit (if equipped)  Catalytic muffler (if equipped)  Carburetor or fuel injection system  Fuel metering valve (if equipped)  Fuel lines (if equipped)  Spark advance module (if equipped)  Air filter, fuel filter, and spark plugs (only  Crankcase breather to first scheduled replacement point)

Continued on next page.

Page 16

LIMITATIONS

This Emission Control Systems Warranty shall not cover any of the following:

(a) repair or replacement required because of misuse or neglect, improper maintenance, repairs improperly performed or replacements

not conforming to Kohler Co. specifications that adversely affect performance and/or durability and alterations or modifications not recommended or approved in writing by Kohler Co.,

(b) replacement of parts and other services and adjustments necessary for required maintenance at and after the first scheduled

replacement point,

(d) diagnosis and inspection fees that do not result in eligible warranty service being performed, and

(e) any add-on or modified part, or malfunction of authorized parts due to the use of add-on or modified parts.

MAINTENANCE AND REPAIR REQUIREMENTS

The owner is responsible for the proper use and 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 warranty period, the maintenance records should be transferred to each subsequent owner. Kohler Co. reserves the right to deny warranty coverage if the engine has not been properly maintained; however, Kohler Co. may not deny warranty repairs solely because of the lack of repair maintenance or failure to keep maintenance records.

Normal maintenance, replacement or repair of emission control devices and systems may be performed by any repair establishment or individual; however, warranty repairs must be performed by a Kohler authorized service center. Any replacement part or service that is equivalent in performance and durability may be used in non-warranty maintenance or repairs, and shall not reduce the warranty obligations of the engine manufacturer.

FOR SALES AND SERVICE INFORMATION

IN U.S. AND CANADA, CALL

1-800-544-2444

ENGINE DIVISION, KOHLER CO., KOHLER, WISCONSIN 53044

FORM NO.: TP-2471-C ISSUED: 12/94 REVISED: 12/01 MAILED:

LITHO IN U.S.A.

Kohler CH6 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual