EN
ZH
XT6.5, XT6.75, XT8
Owner's Manual
IMPORTANT: Read all safety precautions and instructions carefully before operating equipment. Refer to operating instruction of equipment that this engine powers.
Ensure engine is stopped and level before performing any maintenance or service.
Warranty coverage as outlined in the warranty card and on KohlerEngines.com. Please review carefully as it provides you specific rights and obligations.
Record engine information to reference when ordering parts or obtaining warranty coverage.
Engine Model
Specification
Serial Number
Purchase Date
14 590 12 Rev. -- |
KohlerEngines.com |
Safety Precautions
WARNING: Ahazard that could result in death, serious injury, or substantial property damage.
CAUTION: A hazard that could result in minor personal injury or property damage.
NOTE: is used to notify people of important installation, operation, or maintenance information.
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WARNING |
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WARNING |
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Explosive Fuel |
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Carbon |
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Accidental |
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can cause fires |
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Monoxide can |
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Starts can cause |
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and severe |
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cause severe |
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severe injury or |
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burns. |
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nausea, fainting |
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death. |
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Do not fill fuel |
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or death. |
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Disconnect and |
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tank while |
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Avoid inhaling |
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ground spark |
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engine is hot or |
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exhaust fumes. |
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plug lead(s) |
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running. |
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before servicing. |
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Engine exhaust gases |
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Gasoline is extremely |
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contain poisonous carbon |
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Before working on engine or |
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flammable and its vapors |
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monoxide. Carbon |
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equipment, disable engine |
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can explode if ignited. |
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monoxide is odorless, |
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as follows: 1) Disconnect |
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Store gasoline only in |
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colorless, and can cause |
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spark plug lead(s). 2) |
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approved containers, in |
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death if inhaled. |
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Disconnect negative (–) |
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well ventilated, unoccupied |
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battery cable from battery. |
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buildings, away from sparks |
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or flames. Spilled fuel |
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could ignite if it comes in |
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contact with hot parts or |
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sparks from ignition. Never |
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use gasoline as a cleaning |
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agent. |
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WARNING |
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CAUTION |
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WARNING |
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Rotating Parts |
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Electrical Shock |
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Hot Parts can |
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can cause |
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can cause injury. |
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cause severe |
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severe injury. |
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Do not touch |
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burns. |
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Stay away while |
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wires while |
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Do not touch |
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engine is in |
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engine is |
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engine while |
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operation. |
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running. |
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operating or just |
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after stopping. |
Keep hands, feet, hair, |
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and clothing away from all |
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Never operate engine with |
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moving parts to prevent |
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heat shields or guards |
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injury. Never operate engine |
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removed. |
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with covers, shrouds, or |
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guards removed. |
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California Proposition 65 Warning
Engine exhaust from this product contains chemicals known to State of California to cause cancer, birth defects, or other reproductive harm.
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KohlerEngines.com |
14 590 12 Rev. -- |
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EN |
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A |
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C |
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B |
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D |
H |
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E |
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F |
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G |
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A |
Starter Handle |
B |
Fuel Cap |
C |
Oil Fill Cap/ |
D |
Fuel Tank |
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Dipstick |
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E |
Air Cleaner |
F |
Fuel Shut-Off |
G |
Primer Bulb |
H |
Spark Plug |
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Valve |
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Pre-Start Checklist
1.Check oil level. Add oil if low. Do not overfill.
2.Check fuel level. Add fuel if low. Check fuel system components and lines for leaks.
3.Check and clean cooling areas, air intake areas and external surfaces of engine (particularly after storage).
4.Check that air cleaner components and all shrouds, equipment covers, and guards are in place and securely fastened.
5.Check spark arrestor (if equipped).
14 590 12 Rev. -- |
KohlerEngines.com |
3 |
Starting
WARNING
Carbon Monoxide can cause severe nausea, fainting or death.
Avoid inhaling exhaust fumes.
Engine exhaust gases contain poisonous carbon monoxide. Carbon monoxide is odorless, colorless, and can cause death if inhaled.
WARNING
Rotating Parts can cause severe injury.
Stay away while engine is in operation.
Keep hands, feet, hair, and clothing away from all moving parts to prevent injury. Never operate engine with covers, shrouds, or guards removed.
NOTE: Over priming may make it difficult to start engine. It is usually not necessary to prime a warm engine.
NOTE: Choke position for starting may vary depending upon temperature and other factors. Once engine is running and warm, turn choke to OFF position.
NOTE: Extend starter cord periodically to check its condition. If cord is frayed have it replaced immediately by a Kohler authorized dealer.
1.Turn fuel shut-off valve to ON position
(if equipped).
2.Turn engine on/off switch to ON position (if equipped).
3.Start engine as follows:
a.Primer Bulb Models: Place finger or thumb on center of primer bulb. Push primer 3 times.
or
b.Manual Choke Models:
Cold engine: Place throttle control to FAST position. Pull choke control into CHOKE/ON position.
Warm engine: place throttle control to RUN/FAST position.
or
c.Smart-Choke™ Models: this feature automatically adjusts choke on start-up.
4.Retractable Start: Slowly pull starter handle until just past compression-STOP! Return starter handle; firmly pull straight out to avoid excessive rope wear from starter rope guide.
Electric Start: Key switch (refer to operating instructions of equipment that this engine powers).
5.Gradually return choke control to OFF position after engine starts and warms up. Engine/equipment may be operated during warm up period, but it may be necessary to leave choke partially on until engine warms up.
Cold Weather Starting Hints
1.Use proper oil for temperature expected.
2.Disengage all possible external loads.
3.Use fresh winter grade fuel. Winter grade fuel has higher volatility to improve starting.
Stopping
1.If possible, remove load by disengaging all PTO driven attachments.
2.If equipped, move throttle control to slow or idle position; stop engine.
3.If equipped, close fuel shut-off valve.
Angle of Operation
Refer to operating instructions of equipment this engine powers. Do not operate this engine exceeding maximum angle of operation; see specification table. Engine damage could result from insufficient lubrication.
Engine Speed
NOTE: Do not tamper with governor setting to increase maximum engine speed. Overspeed is hazardous and will void warranty.
High Altitude Operation
This engine may require a high altitude carburetor kit to ensure correct engine operation at altitudes above 4000 ft.
(1219 meters). To obtain high altitude kit information or to find a Kohler authorized dealer visit KohlerEngines.com or call 1-800-544-2444 (U.S. and Canada).
This engine should be operated in its original configuration below 4000 ft. (1219 meters) as damage may occur if high altitude carburetor kit is installed and operated below 4000 ft. (1219 meters).
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KohlerEngines.com |
14 590 12 Rev. -- |
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Maintenance Instructions |
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WARNING
Accidental Starts can cause severe injury or death.
Disconnect and ground spark plug lead(s) before servicing.
Before working on engine or equipment, disable engine as follows: 1) Disconnect spark plug lead(s). 2) Disconnect negative (–) battery cable from battery.
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 dealer found at KohlerEngines.com or 1-800-544-2444 (U.S. and Canada).
Maintenance Schedule
After first 3-5 Hours
● Change oil.
Every 25 Hours or Annually1
●Service/replace precleaner.
●Check air cleaner for dirty, loose or damaged parts. Every 50 Hours or Annually
●Change oil.
●Replace fuel filter (if equipped).
Every 50 Hours or Annually1
●Replace air cleaner element. Every 100 Hours or Annually1
●Replace spark plug and set gap.
●Clean spark arrestor (if equipped).
Every 100 Hours or Annually2
●Check and adjust valve clearance when engine is cold.
●Have combustion chamber decarbonized.
1 Perform these procedures more frequently under severe, dusty, dirty conditions.
2 Have a Kohler authorized dealer perform this service.
Oil Recommendations
We recommend use of Kohler oils for best performance. Other high-quality detergent oils (including synthetic) of API (American Petroleum Institute) service class SJ or higher are acceptable. Select viscosity based on air temperature at time of operation as shown in table below.
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10W-30 |
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SAE 30 |
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5W-30 |
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°F -20 |
0 |
20 |
32 |
40 |
50 |
60 |
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80 |
100 |
°C -30 |
-20 |
-10 |
0 |
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10 |
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20 |
30 |
40 |
Check Oil Level
NOTE: To prevent extensive engine wear or damage, never run engine with oil level below or above operating range indicator on dipstick.
Ensure engine is cool. Clean oil fill cap/dipstick areas of any debris.
1. Remove dipstick; wipe oil off.
a.1/4 turn cap: reinsert dipstick into tube; press completely down and turn 1/4 turn.
or
b.Threaded cap: reinsert dipstick into tube; rest cap on tube, do not thread cap onto tube.
2.Remove dipstick; check oil level. Level should be at top of indicator on dipstick.
3.If oil is low on indicator, add oil up to top of indicator mark.
4.Reinstall and secure dipstick.
14 590 12 Rev. -- |
KohlerEngines.com |
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