Specifications
Ratings spec sheet not in our library yet — see the documents below.
Filters & service parts
model family| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | Replace or wash precleaner in warm water with detergent; lightly oil with new engine oil | — | 100 hr | ||
| Fuel filter | Special EFI fuel filter | — | 200 hr | ||
| Oil filter | KOHLER PRO Extended Life Oil Filter (300-Hour interval when paired with KOHLER PRO 10W-50) | — | 300 hr | ||
| Battery | — | ||||
| Belt | — | ||||
| Coolant | — | ||||
| Coolant filter | — | ||||
| Oil | KOHLER PRO 10W-50 Synthetic Oil | 3.864 | — | 300 hr | |
| Spark plug | Set gap 0.030 in. (0.76 mm); torque plug to 20 ft. lb. (27 N·m) | — | 500 hr |
Compiled from this model's family documentation — may include parts for closely-related variants. Confirm the exact part for your serial number.
Service intervals
11| Item | Action | Hours | Months | Notes |
|---|---|---|---|---|
| Air cleaner element | Replace | 100 hr | Replace if not equipped with precleaner. | |
| Precleaner | Other | 25 hr | Service/replace precleaner. Perform more frequently under severe, dusty, dirty conditions. | |
| Precleaner | Replace | 25 hr | Service/replace precleaner. Perform more frequently under severe, dusty, dirty conditions. | |
| Cooling areas | Clean | 100 hr | Remove cooling shrouds and clean cooling areas. | |
| Cooling areas (cooling shrouds) | Clean | 100 hr | Remove cooling shrouds and clean cooling areas. | |
| Fasteners and components | Check | 100 hr | Check that all fasteners are in place and components are properly secured. | |
| EFI fuel filter | Replace | 200 hr | Replace unique EFI fuel filter. | |
| Unique EFI fuel filter | Replace | 200 hr | Perform more frequently under severe, dusty, dirty conditions. | |
| Oil and filter | Change | 300 hr | Option only if using KOHLER PRO 10W-50 oil and PRO filter. | |
| Spark plugs | Replace | 500 hr | Replace spark plugs and set gap. | |
| Valve lash | Adjust | 500 hr | Have valve lash checked/adjusted. Have a Kohler authorized dealer perform this service. |
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
Service specifications
60| Type | Item | Value | Unit | Condition |
|---|---|---|---|---|
| Angle | Nominal valve face angle | 45 | ° | |
| Angle | Valve seat angle | 89 | ° | |
| Clearance | Camshaft end play | 0.06/0.40 | mm | |
| Clearance | Camshaft running clearance | 0.040/0.077 | mm | |
| Clearance | Connecting rod-to-crankpin running clearance, new | 0.037/0.083 | mm | New |
| Clearance | Crankshaft end play (free) | 0.075/0.595 | mm | Free |
| Clearance | Cylinder bore I.D., new | 83.006/83.031 | mm | New |
| Clearance | Cylinder bore max wear limit | 83.069 | mm | Max wear limit |
| Clearance | Cylinder head maximum out-of-flatness | 0.076 | mm | |
| Clearance | Exhaust valve guide I.D. max wear limit | 7.160 | mm | |
| Clearance | Exhaust valve stem-to-valve guide running clearance | 0.052/0.090 | mm | |
| Clearance | Intake valve guide I.D. max wear limit | 7.140 | mm | |
| Clearance | Intake valve stem-to-valve guide running clearance | 0.040/0.0780 | mm | |
| Clearance | Middle compression ring end gap, new bore | 1.519/1.797 | mm | New bore |
| Clearance | Oil control ring-to-groove side clearance | 0.060/0.190 | mm | |
| Clearance | Piston thrust face-to-cylinder bore running clearance, new | 0.019/0.062 | mm | New; measure 6 mm above bottom of piston skirt |
| Clearance | Top compression ring end gap, new bore | 0.189/0.277 | mm | New bore |
| Clearance | Valve clearance | 0.101/0.152 | mm | Adjustment specification |
| Gap | Spark plug gap | 0.030 in. (0.76 mm) | in. (mm) | |
| Gap | Spark plug gap | 0.76 | mm | |
| Other | Bore | 3.27 in. (83 mm) | in. (mm) | |
| Other | Displacement | 44.2 cu. in. (725 cc) | cu. in. (cc) | |
| Other | Displacement | 45.6 cu. in. (747 cc) | cu. in. (cc) | |
| Other | Exhaust valve minimum lift | 8.500 | mm | |
| Other | Fuse rating | 10-amp | amp | 2 solid red wires |
| Other | Fuse rating | 30-amp | amp | 2 purple wires |
| Other | Intake valve minimum lift | 8.500 | mm | |
| Other | Maximum angle of operation | 25 | degrees | @ full oil level |
| Other | Stroke | 2.6 in. (67 mm) | in. (mm) | |
| Other | Stroke | 2.7 in. (69 mm) | in. (mm) | |
| Pressure | Compression minimum | 160 | psi | Warm engine; variation no more than 15% between cylinders |
| Pressure | Crankcase vacuum minimum | 10.2 | cm of water | No-load high speed |
| Pressure | Fuel system operating pressure | 39 ±3 | psi | |
| Resistance | Crankshaft position sensor resistance | 325-395 | Ω | At room temperature (20°C, 68°F) |
| Resistance | Engine temperature sensor circuit resistance | 9000-11000 | Ω | At room temperature (25°C, 77°F) |
| Resistance | Fuel injector resistance | 11-13 | Ω | |
| Resistance | Ignition coil primary resistance | 0.5-0.8 | Ω | Rx1 scale |
| Resistance | Ignition coil secondary resistance | 6400-7800 | Ω | Rx10K scale |
| Resistance | Oxygen sensor heater circuit resistance | 8.1-11.1 | Ω | At room temperature |
| Resistance | TMAP intake air temperature sensor resistance | 1850-2450 | Ω | At room temperature (20°C, 68°F) |
| Speed | ECU maximum RPM limit | 4500 | RPM | Rev-limiting feature suppresses injection |
| Speed | Idle speed | 1500 | RPM | Closed loop, warmed up |
| Speed | Maximum engine speed, no load | 3750 | RPM | No load |
| Torque | Backing plate fasteners | 7.3 | N·m | |
| Torque | Connecting rod cap fastener | 13.6 | N·m | Torque in increments |
| Torque | Crankshaft position sensor bracket to crankcase screw | 8.3 | N·m | |
| Torque | Cylinder head bolt fasteners, final stage | 41.8 | N·m | Finally to 41.8 N·m (370 in. lb.) |
| Torque | Cylinder head bolt fasteners, first stage | 22.6 | N·m | First to 22.6 N·m (200 in. lb.) |
| Torque | ECU fastener into new hole | 6.2 | N·m | |
| Torque | Flywheel retaining screw | 74.5 | N·m | |
| Torque | Fuel injector cap fastener | 7.3 | N·m | |
| Torque | Fuel pump module baffle fastener into new hole | 11.9 | N·m | |
| Torque | Fuel pump module fastener | 9.2 | N·m | |
| Torque | Governor lever nut | 6.8 | N·m | |
| Torque | Ignition coil fastener | 10.2 | N·m | |
| Torque | Intake manifold mounting fasteners | 10.5 | N·m | |
| Torque | Muffler hex nut | 24.4 | N·m | |
| Torque | Muffler lock nut | 27.8 | N·m | |
| Torque | Oil Sentry pressure switch | 4.5 | N·m | |
| Torque | Oil drain plug | 10 ft. lb. (13.6 N·m) | ft. lb. (N·m) |
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
Recommended fluids
| Fluid | Grade | Standard | Ambient | Capacity | Notes |
|---|---|---|---|---|---|
| Engine oil | KOHLER PRO 10W-50 Synthetic | API service class SJ or higher | 1.9 L | All-season ideal oil; extends oil and oil filter change interval to 300 hours when paired with KOHLER PRO Extended Life Oil Filter. Alternative oils require 100-hour oil and filter change intervals. | |
| Engine oil | KOHLER PRO 10W-50 Synthetic Oil; also 5W-30, 10W-30, SAE 30 | API service class SJ or higher | 2.0 U.S. qt. (1.9 L) | Select viscosity based on air temperature at time of operation as shown in chart. 300-Hour oil and oil filter change interval exclusive to KOHLER PRO 10W-50 Synthetic Oil with KOHLER PRO Extended Life Oil Filter; other oils/filters require 100-Hour intervals. | |
| Engine oil | SAE 30 | API service class SJ or higher | 1.9 L | Select viscosity based on air temperature at time of operation as shown in chart. | |
| Engine oil | 5W-30 | API service class SJ or higher | above -30°C | 1.9 L | Select viscosity based on air temperature at time of operation as shown in chart. |
| Engine oil | 10W-30 | API service class SJ or higher | above -20°C | 1.9 L | Select viscosity based on air temperature at time of operation as shown in chart. |
| Fuel | Clean, fresh unleaded gasoline | Octane rating of 87 (R+M)/2 or higher; Research Octane Number (RON) 90 minimum; gasoline up to 10% ethyl alcohol, 90% unleaded acceptable; MTBE blend max 15% by volume approved | E15, E20 and E85 are NOT approved and should NOT be used. Do not add oil to gasoline. Do not use gasoline older than 30 days. | ||
| Fuel | Unleaded gasoline | Clean, fresh unleaded; octane 87 (R+M)/2 or higher; RON 90 minimum; up to 10% ethyl alcohol; MTBE and unleaded blend max 15% MTBE by volume | E15, E20, and E85 are NOT approved. Do not use gasoline older than 30 days. Do not add oil to gasoline. |
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
Fault codes
26| Code | Name | Meaning | Severity | Action |
|---|---|---|---|---|
| 0031 | Oxygen Sensor Heater Circuit Low Voltage | O2S Heater Circuit Low Voltage; system voltage too low, open connection or faulty sensor. | Check pin circuit wiring/connectors ECU black pin 7; check sensor connector or wiring; check system ground from ECU to engine or battery to engine. | |
| 0032 | Oxygen Sensor Heater Circuit High Voltage | O2S Heater Circuit High Voltage; system voltage too high, shorted connection or faulty sensor. | Check sensor connector/wiring; check sensor damage; check pin circuit wiring/connectors at Black 7; check ECU-to-harness connection. | |
| 0107 | Manifold Absolute Pressure (TMAP) Circuit Low Voltage or Open | MAP Circuit Low Voltage or Open; intake manifold leak, open connection or faulty sensor. | Check TMAP sensor, vacuum leaks, wiring harness, pin circuits Black 10, 11, 16, and TPS Learn. | |
| 0108 | Manifold Absolute Pressure (TMAP) Circuit High Voltage | MAP Circuit High Voltage; intake manifold leak, shorted connection or faulty sensor. | Check TMAP sensor, vacuum leaks, poor grounding, pin circuit Black 11, and TPS Learn. | |
| 0112 | Intake Air Temperature (TMAP) Circuit Low Voltage | Intake Air Temperature Sensor Circuit Low Voltage; shorted connection, faulty sensor or shorted wire. | Check TMAP sensor wiring/connection; check engine wiring harness pin circuits Black 10 and Black 8; check ECU-to-harness connection. | |
| 0113 | Intake Air Temperature (TMAP) Circuit High Voltage or Open | Intake Air Temperature Sensor Circuit High Voltage or Open; shorted connection, faulty sensor, broken wire or connection. | Check TMAP sensor wiring/connection; check ECU pin circuits Black 10 and 8; check ECU-to-harness connection or broken wire. | |
| 0117 | Engine Temperature Sensor Circuit Low Voltage | Engine Temperature Sensor Circuit Low Voltage; shorted connection, faulty sensor or shorted wire. | Check temperature sensor wiring/connection; check pin circuits Black 10 and Black 14; check ECU-to-harness connection. | |
| 0118 | Engine Temperature Sensor Circuit High Voltage or Open | Engine Temperature Sensor Circuit High Voltage or Open; shorted connection, faulty sensor, open connection or broken wire. | Check sensor wiring/connection; check ECU pin circuits Black 10 and 14; check ECU-to-harness connection or broken wire; check engine operating temperature limit. | |
| 0122 | Throttle Position Sensor Circuit Low Voltage or Open | TPS Circuit Low Voltage or Open; open connection, broken wire or faulty sensor. | Check TPS, engine wiring harness, ECU black pins 10, 12, 16; check throttle body, throttle shaft, throttle plate; check ECU. | |
| 0123 | Throttle Position Sensor Circuit High Voltage | TPS Circuit High Voltage; shorted connection or faulty sensor. | Check TPS sensor connector/wiring; check throttle body; check ECU pins Black 10, 12, 16; check ECU-to-harness connection. | |
| 0131 | Oxygen Sensor 1 Circuit Low Voltage, or Open | O2S 1 Circuit Low Voltage; open connection, broken wire or faulty sensor. | Check oxygen sensor connector/wiring; check sensor contamination/corrosion/damage; check ground path; check ECU Black pin 10 or 17; check TPS Learn; check wiring harness. | |
| 0132 | Oxygen Sensor 1 Circuit High Voltage | O2S 1 Circuit High Voltage; shorted connection or faulty sensor. | Check oxygen sensor connector/wiring; check sensor contamination/damage; check ground path; check ECU Black pin 10 or Black pin 17; check engine wiring harness short. | |
| 0171 | Maximum Adaptation Limit Exceeded | Maximum adaptation limit exceeded; fuel inlet screen/filter plugged, low pressure at high pressure fuel line, TPS malfunction, shorted connection, faulty sensor, low fuel or wrong fuel type. | Check oxygen sensor, TPS, engine wiring harness, ignition, fuel, combustion air, base engine, exhaust leak, fuel in crankcase oil. | |
| 0172 | Minimum Adaptation Limit Exceeded | Minimum adaptation limit exceeded; too high pressure at high pressure fuel line, TPS malfunction, shorted connection, faulty sensor or fuel pump module failure. | Check oxygen sensor, TPS, engine wiring harness, ignition, fuel, combustion air, base engine, fuel in crankcase oil, fuel pump module, lift pump diaphragm. | |
| 0174 | Lean Fuel Condition at High Load (Open Loop) | Lean fuel condition; fuel inlet screen/filter plugged, low pressure at high pressure fuel line, TPS malfunction, shorted connection or faulty sensor. | Check TPS Learn, engine wiring harness pins Black 10, 12, 16, 17, low fuel pressure, plugged filters, lift pump, oxygen sensor, system ground, fuel pump module connection. | |
| 0201 | Injector 1 Circuit Malfunction | Injector 1 Circuit Malfunction; injector damaged or faulty, shorted or open connection. | Check injector coil, engine wiring harness broken or shorted wire, ECU pin Black 5, wiring from ignition, ECU circuit controlling injector #1. | |
| 0202 | Injector 2 Circuit Malfunction | Injector 2 Circuit Malfunction; injector damaged or faulty, shorted or open connection. | Check injector coil, engine wiring harness broken or shorted wire, ECU pin Black 6, wiring from ignition, ECU circuit controlling injector #2. | |
| 0230 | Fuel Pump Module Circuit Low Voltage or Open | Circuit Low Voltage or Open; shorted or open connection. | Check fuel pump module internal open/short; check engine wiring harness broken or shorted wire; check ECU pin Black 9 or Grey 17; check ECU damage. | |
| 0232 | Fuel Pump Module Circuit High Voltage | Circuit High Voltage; shorted connection. | Check fuel pump module internal damage; check charging output system too high. | |
| 0336 | Crankshaft Position Sensor Noisy Signal | Crankshaft Position Sensor Noisy Signal; loose sensor, faulty/bad battery, shorted or faulty connection, faulty sensor or faulty sensor grounding. | Check sensor connector/wiring, sensor loose, sensor wheel damaged teeth/gap section, engine wiring harness pins Black 4 and Black 13, ECU-to-harness connection, ignition system non-resistor spark plug(s) or faulty coil/secondary lead. | |
| 0337 | Crankshaft Position Sensor No Signal | Crankshaft Position Sensor No Signal; loose sensor, open or shorted connection or faulty sensor. | Check sensor connector/wiring, sensor loose, sensor wheel damaged teeth, engine wiring harness pins Black 4 or Black 13, ECU-to-harness connection; if code in fault history and starts normally, clear code and no other service required. | |
| 0351 | Cylinder 1 Ignition Coil Malfunction | Cylinder 1 Ignition Coil Malfunction; broken wire in harness (may not be visible), shorted connection or faulty sensor. | Check connection to ignition or fuse, pin circuit wiring/connectors, ECU pin Black 1, ECU-to-harness connection, incorrect spark plug(s), poor connection to spark plug. | |
| 0352 | Cylinder 2 Ignition Coil Malfunction | Cylinder 2 Ignition Coil Malfunction; broken wire in harness (may not be visible), shorted connection or faulty sensor. | Check connection to ignition or fuse, pin circuit wiring/connectors, ECU pin Grey 10, ECU-to-harness connection, incorrect spark plug(s), poor connection to spark plug. | |
| 0562 | System Voltage Low | System Voltage Low; faulty voltage regulator, bad fuse or shorted connection. | Check corroded connections, bad stator, bad battery, low output charging system, poor magnet in flywheel, bad or missing fuse. | |
| 0563 | System Voltage High | System Voltage High; faulty voltage regulator or shorted connection. | Check faulty rectifier-regulator, bad stator, bad battery. | |
| 61 | End of Code Transmission | End of code transmission. | Info |
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
Procedures
12Adjust Valve Clearance adjustment
Tools: feeler gauge, torque wrench
- Rotate crankshaft to establish TDC on compression stroke for cylinder 1.
- Check compression at spark plug hole and keyway aligned with cylinder 1.
- Insert a 0.127 mm (0.005 in.) feeler gauge between valve and rocker arm.
- Turn adjuster until slight drag is felt; hold; tighten setscrew to 7.9 N·m.
- Recheck adjustment; proper valve clearance is 0.101/0.152 mm.
- Viewed from PTO end, rotate crankshaft 270° counterclockwise; align keyway with cylinder 2; repeat for side 2.
Governor Initial Adjustment adjustment
⚠ Do not tamper with governor setting. Overspeed is hazardous and could cause personal injury.
Tools: 7 mm hex socket, torque wrench
- Make sure throttle linkage is connected to governor arm and throttle lever on throttle body.
- Loosen nut holding governor lever to cross shaft.
- Move governor lever toward throttle body as far as it will go (wide open throttle) and hold.
- Use 7 mm hex socket on end of cross shaft; rotate counterclockwise as far as it will turn; torque nut to 6.8 N·m.
Compression Test diagnostic
Tools: compression tester
- Perform on a warm engine. Clean dirt and debris away from base of spark plug(s).
- Be sure battery is fully charged, unplug ECU, and throttle is wide open.
- Crank engine; compression should be at least 160 psi and should not vary more than 15% between cylinders.
Crankcase Vacuum Test diagnostic
⚠ Carbon Monoxide can cause severe nausea, fainting or death. Avoid inhaling exhaust fumes.
Tools: water manometer, rubber stopper, pinch clamp
- Insert rubber stopper into oil fill hole; connect hose and manometer with tapered adapters.
- Start engine and run no-load high speed.
- Open clamp and note water level. Engine side should be at least 10.2 cm (4 in.) above open side.
- Close pinch clamp before stopping engine.
Cylinder Leakdown Test diagnostic
Tools: cylinder leakdown tester, adapter hose, holding tool, breaker bar
- Run engine for 3-5 minutes to warm it up.
- Remove spark plug(s) and air filter from engine.
- Rotate crankshaft until piston is at TDC of compression stroke; hold engine in this position.
- Install adapter into spark plug hole, but do not attach it to tester at this time.
- Turn regulator knob completely counterclockwise.
- Connect an air source of at least 50 psi to tester.
- Turn regulator knob clockwise until gauge needle is in yellow set area.
- Connect tester to adapter; open tester valve; note gauge reading and listen for escaping air.
ECU Reset Procedure diagnostic
⚠ System will NOT reset when battery is disconnected.
⚠ TPS Learn Procedure must be performed after ECU Reset.
Tools: Kohler EFI service kit Red wire jumper
- Turn key/ignition OFF.
- Install Red wire jumper from Kohler EFI service kit onto service port.
- Turn key/ignition ON, then OFF; count 10 seconds.
- Turn key/ignition ON, then OFF; count 10 seconds a second time.
- Remove Red wire jumper. Turn key ON, then OFF; count 10 seconds a third time. ECU is reset.
TPS Learn Procedure diagnostic
- Turn idle screw clockwise one full turn prior to key ON after ECU Reset.
- Start engine; run at low idle until engine is warm.
- Idle speed must be above 1500 RPM. If below, set 1700 RPM; shut down; perform ECU Reset again.
- Restart engine; adjust idle speed down to 1500 RPM; allow engine to dwell about 3 seconds.
- Adjust idle speed to final specified speed setting.
- Turn key/ignition OFF and count to 10 seconds. Learn procedure is complete.
Test for Spark diagnostic
⚠ Do not crank engine or perform tests with 1 spark plug lead disconnected and not grounded.
Tools: spark tester
- With engine stopped, disconnect 1 spark plug lead.
- Connect spark plug lead to post terminal of spark tester and attach tester clip to a good engine ground.
- Crank engine over, establishing a minimum of 550-600 RPM, and observe tester for spark.
- Repeat spark test on opposite cylinder if cylinders are being tested individually.
Air Cooling Maintenance maintenance
⚠ Hot Parts can cause severe burns. Never operate engine with heat shields or guards removed.
- Clean screens, cooling fins, and other external surfaces of engine to prevent overheating.
- Avoid spraying water at wiring harness or any electrical components.
Change Oil and Filter maintenance
⚠ Disconnect and ground spark plug lead(s) before servicing.
- Change oil while engine is warm. Clean area around oil fill cap/dipstick.
- Remove drain plug and oil fill cap/dipstick. Allow oil to drain completely.
- Clean area around oil filter, place container under filter, remove filter and wipe mounting surface.
- Reinstall drain plug. Torque to 10 ft. lb. (13.6 N·m).
- Place new filter in shallow pan open end up; fill with new oil to bottom of threads; allow 2 minutes.
- Apply thin film of clean oil to rubber gasket on new filter.
- Refer to instructions on oil filter for proper installation.
- Fill crankcase with new oil to top of indicator on dipstick.
- Reinstall oil fill cap/dipstick and tighten securely.
- Start engine; check for oil leaks. Stop engine; correct leaks. Recheck oil level.
- Dispose of used oil and filter in accordance with local ordinances.
Check Oil Level maintenance
⚠ Never run engine with oil level below or above operating range indicator on dipstick.
- Ensure engine is cool. Clean oil fill/dipstick areas of any debris.
- Remove dipstick; wipe oil off.
- Reinsert dipstick into tube; press completely down.
- Remove dipstick; check oil level. Level should be at top of indicator on dipstick.
- If oil is low on indicator, add oil up to top of indicator mark.
- Reinstall and secure dipstick.
Paper Element Replacement maintenance
⚠ Paper element cannot be blown out with compressed air.
- Separate precleaner from element; service precleaner and replace paper element.
- Install precleaner over new paper element and install on base.
- Reinstall cover; place latches onto cover; pull down bails to secure cover.
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
Available documents
Reference — Gasoline Full line (Kohler)Owner's manual — 16 590 06 EN (Kohler)Service manual — 16 690 07 EN (Kohler)