Service parts for the 4CFKM
Grouped by system, with how many of each the parts manual calls for.
Air intake
1 requiredOil system
1 requiredPrices captured from merchant listings; some links are affiliate links. Confirm against your serial number before ordering.
Specifications
| Fuel | gasoline / LP gas |
|---|---|
| Frequency | 50.0 Hz |
| Prime power | 3 kW |
| Controller | Kohler relay controller |
| Oil capacity | 1.4 L |
| Voltage options | 110 V, 220 V |
| Phase | single |
| Rated current | 30.0 A |
| Power factor | 1.0 |
| Battery cranking | 290 CCA |
| Battery voltage | 12 V |
| Starting system | 12 V DC |
| Dimensions (L×W×H) | 631×469×355 mm |
| Dry weight | 117 kg |
Maintenance & consumables
for the Kohler M18 / M20| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | Air Filter | 994162 | Amazon eBay | ||
| Fuel filter | 993872 | 500 hr | Amazon eBay $110.25 | ||
| Fuel filter | Secondary | 278612 | Amazon eBay $29.64 | ||
| Oil filter | Oil Filter | 994216 | 50 hr | Amazon eBay $35.99 | |
| Battery | — | 240 hr | |||
| Belt | — | 50 hr | |||
| Coolant | 993873 | 50 hr | Amazon eBay | ||
| Coolant filter | Coolant | 993873 | Amazon eBay | ||
| Oil | 1.5 | — | 50 hr | ||
| Spark plug | — | 500 hr |
Service intervals
29| Item | Action | Hours | Months | Notes |
|---|---|---|---|---|
| Air cleaner | Clean | 50 hr | 6 mo | Replace if dirty |
| Battery electrolyte level | Check | 50 hr | 6 mo | |
| LP collection pipe (LP liquid units) | Drain | 50 hr | 6 mo | Drain contaminants into suitable container |
| Lube oil filter | Replace | 100 hr | 12 mo | Replace every time oil is changed |
| air cleaner | Check | 50 hr | 6 mo | Replace if dirty |
| collection pipe (LP liquid-fueled units) | Drain | 50 hr | If equipped | |
| lube filter | Replace | 100 hr | 12 mo | First service — 5 kW; replace at every oil change; initial after first five hours |
| Battery specific gravity | Test | 100 hr | 12 mo | |
| Electrical connections | Inspect | 100 hr | 12 mo | Check and tighten |
| LP liquid withdrawal fuel filter | Inspect | 100 hr | Inspected yearly or after every 100 hours | |
| Mounting bolts and vibromounts | Inspect | 100 hr | 12 mo | Check and tighten |
| Spark arrestor | Clean | 500 hr | 24 mo | |
| battery specific gravity | Check | 100 hr | 12 mo | |
| liquid withdrawal LP fuel filter | Inspect | 100 hr | 12 mo | Yearly or every 100 hours |
| lube oil | Change | 100 hr | 12 mo | First service — Change oil initially after first five hours of operation |
| spark plugs | Replace | 100 hr | 12 mo | Service or replace; check condition every 100 hours |
| Stepper motor/throttle shaft coupling | Inspect | 250 hr | Check for coupling wear | |
| stepper motor/throttle shaft coupling | Check | 250 hr | Check for wear | |
| Compression | Check | 500 hr | 24 mo | |
| Cylinder heads | Clean | 500 hr | 24 mo | Service after each 500 hours; every 250 hours if using leaded fuel |
| Fuel filter | Replace | 500 hr | ||
| Valve-tappet clearance | Adjust | 500 hr | 24 mo | After each 500 hours |
| compression | Test | 500 hr | 24 mo | Check compression |
| cylinder heads | Other | 500 hr | Service cylinder heads at authorized dealer; every 250 hours if leaded fuel used | |
| cylinder heads | Replace | 500 hr | 24 mo | Service cylinder heads; 250 hours if leaded fuel |
| electrical connections | Check | 500 hr | 24 mo | Check and tighten |
| generator | Clean | 500 hr | 24 mo | Blow dust out of generator |
| mounting bolts and vibromounts | Check | 500 hr | 24 mo | Check and tighten |
| valve-tappet clearance | Check | 500 hr | 24 mo | Performed at an authorized Kohler service dealer/distributor |
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 |
|---|---|---|---|---|
| Gap | Electronic governor magnetic pickup air gap | 0.040 | in. (1.02 mm) +/- 0.005 in. (0.127 mm) | |
| Gap | Governor magnetic pickup air gap | 0.040 (0.005) | in. (1.02 mm, 0.127 mm) | |
| Gap | Ignition module to magnet air gap | 0.008-0.012 | in. | |
| Gap | Magnetic pickup air gap | 0.040 in. (1.02 mm) + 0.005 in. (0.127 mm) | in. (mm) | |
| Gap | Spark plug gap (LP gas) | 0.018 in. (0.46 mm) | in. (mm) | |
| Gap | Spark plug gap (gasoline) | 0.025 in. (0.64 mm) | in. (mm) | |
| Gap | Spark plug gap - LP gas | 0.018 | in. (0.46 mm) | |
| Gap | Spark plug gap - gasoline | 0.025 | in. (0.64 mm) | |
| Other | Air requirements - combustion | 20 | cfm (0.6 m3/min) | |
| Other | Air requirements - cooling | 340 | cfm (9.6 m3/min) | |
| Other | Battery charging system rated output | 0-15 | amps (regulated) | |
| Other | Battery specific gravity (charge required below) | 1.215 | specific gravity | at 80°F (26.7°C) electrolyte temperature |
| Other | Battery specific gravity (fully charged) | 1.260 | specific gravity | at 80°F (26.7°C) electrolyte temperature |
| Other | Carburetor idle fuel needle preliminary setting | 1 1/2 | turns | |
| Other | Carburetor main fuel needle preliminary setting | 2 1/4 | turns | |
| Other | Charge battery if specific gravity below | 1.215 | specific gravity | at 80 deg F (26.7 deg C) |
| Other | Choke adjustment above 10 deg F (-12.2 deg C), scribe-to-casting mark distance | 5/16 | in. (8 mm) | |
| Other | Choke adjustment distance (above 10°F) | 5/16 in. (8 mm) | in. (mm) | |
| Other | Choke plate position | within 5 to 10 degrees of full open | degrees | at approximately 70°F (21°C) |
| Other | Choke plate position at approx. 70 deg F (21 deg C) | 5 to 10 degrees of full open | degrees | approx. 70 deg F (21 deg C) |
| Other | Cranking current at 70 deg F (21 deg C) | 100 | amps | 70 deg F (21 deg C) |
| Other | Derating - altitude above sea level | approximately 4.0% per 1000 ft. (300 m) | % | |
| Other | Free air opening | 85 | sq. in. (548 sq. cm) | |
| Other | Fully charged battery specific gravity | 1.260 | specific gravity | at 80 deg F (26.7 deg C) |
| Other | Gasoline carburetor idle fuel needle preliminary setting | 1 1/2 | turns out | |
| Other | Gasoline carburetor main fuel needle preliminary setting | 2 1/4 | turns out | |
| Other | LP carburetor idle fuel screw setting | 1/4 | turn out | |
| Other | LP carburetor main fuel valve preliminary setting | 1 | turn out (360 deg) | |
| Other | LP idle fuel screw preliminary setting | 1/4 | turn | |
| Other | LP main fuel valve preliminary setting | 1 | turn | |
| Other | Maximum difference between cell specific gravities | 0.01 | specific gravity | |
| Other | Minimum recommended clearance for vibration and cooling (front, side, top, rear) | 0.6 | in. (15.2 mm) | |
| Other | Stator output voltage B1-B2 (separately excited) | 12-15 | vac | during cranking |
| Pressure | Engine oil pressure | 30-40 | psi (207-276 kPa) | |
| Pressure | Engine oil pressure | 30-40 psi (207-276 kPa) | psi (kPa) | |
| Pressure | Fuel pump pressure (gasoline models only) | 2-3.5 | psi (14-24 kPa) | |
| Pressure | Fuel pump pressure (gasoline models) | 2-3.5 | psi (14-24 kPa) | |
| Pressure | LP liquid withdrawal inlet pressure | 50 | psi | |
| Pressure | LP liquid withdrawal leak test pressure | not less than 90 | psi (621 kPa) | |
| Pressure | LP primary regulator outlet | 7-11 | in. water column (4-6 oz) | |
| Pressure | LP vapor gas inlet pressure | 7-11 | in. water column (4-6 oz. per sq. in.) | |
| Pressure | LP vapor system leak test pressure | 6-8 oz per sq. in. (10-14 in. water column) | oz/in2 | |
| Pressure | Low oil pressure shutdown | 3 1/2 psi - 1 1/2 psi (24.1 kPa) | psi (kPa) | |
| Pressure | Low oil pressure shutdown threshold | 3 1/2 psi +1 1/2 | psi (24.1 kPa) | |
| Pressure | Low oil pressure switch contact closing | approx. 3.5 | psi (24 kPa) | |
| Pressure | Low oil pressure switch contacts close | 3.5 (approx.) | psi (24 kPa) | |
| Resistance | Anti-icing plate (thermistor) | approx. 10 | ohms | |
| Resistance | Antidieseling solenoid | approx. 22 | ohms | at 75° F (24° C) |
| Resistance | Battery charge required below specific gravity | 1.215 | specific gravity | electrolyte temperature 80 F (26.7 C) |
| Resistance | Battery fully charged specific gravity | 1.260 | specific gravity | electrolyte temperature 80 F (26.7 C) |
| Resistance | Carburetor electric choke | approx. 18 | ohms | at 75° F (24° C) |
| Resistance | High tension leads | 22,000-42,000 | ohms max. per lead | |
| Resistance | High tension leads | 22,000-42,000 max. per lead | ohms | |
| Resistance | Ignition primary resistance | 1.0-1.5 | ohms | |
| Resistance | K1 relay coil | approx. 160 | ohms | ohmmeter on R x 10 scale |
| Resistance | K2 relay coil | approx. 160 | ohms | ohmmeter on R x 10 scale |
| Resistance | K3 relay coil | approx. 400 | ohms | ohmmeter on R x 10 scale |
| Resistance | K4 relay coil | approx. 125 | ohms | ohmmeter on R x 10 scale |
| Resistance | K5 relay coil | approx. 510 | ohms | ohmmeter on R x 10 scale |
| Resistance | Rotor resistance | 3.5-5.5 | ohms |
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 | 10W-30 | API SF or SG | Multi-viscosity oil above 32 F (0 C) increases oil consumption and combustion deposits. | ||
| Engine oil | 5W-20, 5W-30 | API SF or SG | |||
| Engine oil | SAE 30 straight-weight preferred (also 10W-30, 5W-20, 5W-30 per temperature chart) | API service class SF or SG | 1.5 qts (L) with filter | Do not use synthetic oils during first five hours; do not mix brands; multi-viscosity oil above 32 deg F (0 deg C) increases oil consumption | |
| Engine oil | SAE 30 straight weight preferred; 5W-20/5W-30 multi-viscosity permitted | API Service Class SF | -30°C to 40°C | Do not use synthetic oils during first five hours; multi-viscosity increases oil consumption above 32°F (0°C) | |
| Engine oil | SAE 30 (straight weight preferred) | API SF or SG | above 0°C | 1.5 qt | Base oil type selection on air temperature at time of operation. Do not use synthetic oils during first five hours. Do not mix different brands of oils. |
| Fuel | LP Gas (vapor or liquid withdrawal) | NFPA58 Section 3-6.4 | LP vapor inlet pressure 4-6 oz. (7-11 in. water column); LP liquid withdrawal 50 psi | ||
| Fuel | LP vapor gas inlet pressure 7-11 in. water column, 4-6 oz per sq. in. | LP liquid withdrawal inlet pressure 50 psi | Liquid withdrawal fuel must be blended for season and geographic location | ||
| Fuel | LP vapor or LP liquid withdrawal gas blended for the season and geographic location | ||||
| Fuel | Regular grade unleaded gasoline, pump octane 87 or higher (90 research octane min.) | Gasohol max 10% ethanol allowed; never methanol; oil must not be mixed with fuel | |||
| Fuel | Regular unleaded gasoline, 87 octane minimum (90 research rating method) | Gasohol with no more than 10% ethanol permitted | Use fresh gasoline; never use gasoline with methanol | ||
| Fuel | Unleaded gasoline, 87 octane (90 research rating method minimum) | Gasohol containing no more than 10% ethanol may be used; never use methanol or more than 10% ethanol. Do not mix oil with the fuel. Use fresh gasoline. | |||
| Grease | Petroleum jelly or other nonconductive grease | Coat battery terminals after cleaning and reconnection |
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
Procedures
12Adjusting Valve Clearance adjustment
Tools: feeler gauge, valve grinding tools
- Stop and cool engine to ambient temperature.
- Rotate flywheel and observe valve movement to find cylinder at TDC.
- Measure valve-to-tappet clearance with flat feeler gauge.
- Rotate flywheel 360 degrees; measure remaining cylinder.
- Grind valve stems if clearance insufficient; replace valves if excessive.
Choke Adjustment Above 10 deg F (-12.2 deg C) adjustment
Tools: screwdriver, scribe
- Scribe mark on choke black cover where casting mark meets it.
- Loosen two choke adjusting screws.
- Rotate choke cover counterclockwise toward leaner setting.
- Tighten screws when scribe-to-casting distance is 5/16 in. (8 mm).
Choke Adjustment for Operation above 10°F (-12.2°C) adjustment
- Make a scribe mark on the black plastic cover where the choke casting mark meets it.
- Loosen the two choke adjusting screws and rotate choke cover counterclockwise toward leaner setting.
- When distance between scribe mark and casting mark is 5/16 in. (8 mm) tighten the two adjusting screws.
Choke Adjustment for Operation below 10°F (-12.2°C) adjustment
⚠ If not previously adjusted, leave as factory set.
- Loosen the two choke adjusting screws and rotate choke cover clockwise (opposite arrow on choke).
- When the scribe mark on the black plastic cover and the choke casting mark line up, tighten the two adjusting screws.
Electronic Governor Adjustment adjustment
⚠ Do not use speed adjustment pot to check the overspeed cutout point.
Tools: Frequency meter
- Check alignment of governor actuator shaft to carburetor throttle shaft.
- Attach frequency meter to AC output leads and run to normal temperature.
- Adjust speed pot to obtain full load speed of 60 Hz or 50 Hz.
- With no load, turn gain pot 1/8 turn counterclockwise until stable.
- Apply rated load and observe frequency reading.
- Remove load and observe frequency returns to speed adjustment value.
- Check overspeed cutout point by manually moving throttle shaft clockwise.
- Turn overspeed pot as necessary to obtain desired cutout point.
Gasoline Carburetor Main and Idle Fuel Adjustment adjustment
⚠ Do not force the tapered adjusting needles or needle and seat damage will occur.
Tools: screwdriver
- Stop engine; turn main and idle needles in clockwise until lightly bottomed.
- Back main needle out 2 1/4 turns and idle needle 1 1/2 turns.
- Start engine and run at half load 5-10 minutes to warm.
- Run at 3/4 to full load; turn main needle in until engine runs roughly.
- Turn main needle out 1/4 turn richer than lean limit.
- Set idle fuel needle using same procedure.
Gasoline Carburetor Main and Idle Fuel Mixture Adjustment adjustment
⚠ Damage to needles and seats will result if the needles are forced.
- Stop engine and turn main fuel and idle fuel adjusting needles in until they bottom lightly.
- Back out main fuel needle 2 1/4 turns and idle fuel needle 1 1/2 turns.
- Start engine and run at half-load for 5-10 minutes to warm up.
- At 3/4 to full load, turn main fuel needle in until engine does not operate smoothly; note position.
- Turn the main fuel needle out 1/4 turn.
- Set idle fuel needle using the same procedure.
Gasoline Choke Adjustment adjustment
- Scribe mark where choke casting mark meets black plastic cover.
- Loosen the two choke adjusting screws.
- Above 10 F (-12.2 C): rotate cover counterclockwise to leaner until 5/16 in. (8 mm) from mark.
- Below 10 F (-12.2 C): rotate cover clockwise until marks line up.
- Tighten the two adjusting screws.
LP Carburetor Adjustment adjustment
⚠ Improper rich adjustment causes vaporizer malfunction and excess fuel consumption.
Tools: screwdriver
- Turn main fuel valve clockwise until lightly bottomed; back out 1 turn.
- Warm engine and run at rated rpm under full load.
- Turn main valve in until engine slows (lean); out until full speed regained.
- Stop engine; turn idle fuel screw fully in, then back out 1/4 turn.
LP Gas Carburetor Main Fuel Mixture Adjustment adjustment
- Turn MAIN FUEL valve clockwise until it bottoms lightly (do not force), then back out 1 turn.
- With engine warm at rated rpm under full load, turn MAIN FUEL valve in until engine slows (lean).
- Turn valve out until engine regains full speed (about 1/8 turn).
LP Gas Idle Fuel Mixture Adjustment adjustment
- Stop the engine.
- Turn IDLE FUEL screw all the way in (clockwise) then back out 1/4 turn.
- Adjust for proper no load operation.
LP Primary Regulator Adjustment adjustment
⚠ Internal relief valve opens at approximately 1 psig on regulators set at 11 in. water column.
Tools: manometer, screwdriver
- Energize both solenoids; remove lead 71 from starter solenoid.
- Disconnect J9/P9 and P20/J20; apply 12 VDC to J20 to hold antidiesel solenoid.
- Depress prime button on secondary regulator.
- Connect manometer between secondary regulator and carburetor.
- Reading should be 7-11 in. (4-6 oz) water column.
- Adjust screw clockwise to increase, counterclockwise to decrease outlet pressure.
- Replace closing cap after adjustment.
- Reconnect all connectors and lead 71; start and run set.
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
Voltage reconnection
| Voltage | Phase | Connection | Leads | Notes |
|---|---|---|---|---|
| 110 | 1 | 2-wire, 4-lead reconnectable | L1 | 50 Hz; use single-pole circuit breaker. |
| 110 | 1 | 3-wire, 4-lead reconnectable | LO-L1, LO-L2 | 50 Hz; LO is neutral. |
| 110/220 | 1 | 3-wire, 4-lead reconnectable | L1-L2 | 50 Hz; factory two-pole circuit breaker required. |
| 110/220 | 3 | 4-wire delta, 12-lead reconnectable | 50 Hz | |
| 110/220 volt | 1 | 3 Wire (12-lead stator) | 50 Hz | |
| 110/220 volt | 3 | 4 Wire Delta (12-lead stator) | 50 Hz | |
| 120 | 1 | 2-wire, 4-lead reconnectable | L1 | 60 Hz; use single-pole circuit breaker. |
| 120 | 1 | 3-wire, 4-lead reconnectable | LO-L1, LO-L2 | 60 Hz; LO is neutral. Factory two-pole or (2) 1-pole circuit breakers; jumper lead used. |
| 120 Volt | 1 | View A—120 Volt, 3 Wire | L1, L2, LO (Neutral), Ground | Factory two-pole or (2) 1-pole circuit breakers; jumper lead on line side; LO-L1 120 Volt, LO-L2 120 Volt (60 Hz) |
| 120 Volt | 1 | View B—120 Volt, 2 Wire | L1, LO (Neutral), Ground | 1-pole circuit breaker; LO-L1 120 Volt (60 Hz) |
| 120 Volt (60 Hz) / 110 Volt (50 Hz) | single | L0-L1 | L0, L1 | View A - 120 Volt 3 wire (factory two-pole or (2) 1-pole circuit breakers, jumper lead on line side) |
| 120 Volt (60 Hz) / 110 Volt (50 Hz) | single | L0-L2 | L0, L2 | View A - 120 Volt 3 wire |
| 120/208 or 110/190 | 3 | 4-wire low wye, 12-lead reconnectable | 50 Hz | |
| 120/208 or 139/240 | 3 | 4-wire low wye, 12-lead reconnectable | 60 Hz | |
| 120/208 volt or 110/190 volt | 3 | 4 Wire Low Wye (12-lead stator) | 50 Hz | |
| 120/208 volt or 139/240 volt | 3 | 4 Wire Low Wye (12-lead stator) | 60 Hz | |
| 120/240 | 1 | 3-wire, 4-lead reconnectable | L1-L2 | 60 Hz; jumper lead not used; MUST use factory two-pole circuit breaker. L1 and L2 must never be connected together. |
| 120/240 | 3 | 4-wire delta, 12-lead reconnectable | 60 Hz | |
| 120/240 Volt | 1 | View C—120/240 Volt, 3 Wire | L1, L2, LO (Neutral), Ground | Factory two-pole circuit breaker; leads L1 and L2 are different phases and must never be connected together |
| 120/240 volt | 1 | 3 Wire (12-lead stator) | 60 Hz | |
| 120/240 volt | 3 | 4 Wire Delta (12-lead stator) | 60 Hz | |
| 220/380 | 3 | 4-wire high wye, 12-lead reconnectable | 50 Hz | |
| 220/380 volt | 3 | 4 Wire High Wye (12-lead stator) | 50 Hz | |
| 240 Volt (60 Hz) / 220 Volt (50 Hz) | single | L1-L2 | L1, L2 | View C - 120/240 Volt 3 wire (two-pole circuit breaker required; jumper lead removed) |
| 277/480 | 3 | 4-wire high wye, 12-lead reconnectable | 60 Hz | |
| 277/480 volt | 3 | 4 Wire High Wye (12-lead stator) | 60 Hz |
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
Common questions
What engine does the Kohler 4CFKM use?
The Kohler 4CFKM is powered by the Kohler M18 / M20 engine.
What fuel does the Kohler 4CFKM use?
The Kohler 4CFKM runs on gasoline / LP gas.
What is the oil capacity of the Kohler 4CFKM?
The Kohler M18 / M20 engine in the Kohler 4CFKM has an oil capacity of 1.6 liters.
How much does the Kohler 4CFKM weigh?
The Kohler 4CFKM has a dry weight of 117 kg (257 lb).
What voltage does the Kohler 4CFKM produce?
The Kohler 4CFKM is offered in 110 V, 220 V, single-phase.
How many cold cranking amps does the Kohler 4CFKM require?
The Kohler 4CFKM uses 12 V each, 290 CCA, per the manufacturer specification sheet. The starting system is 12 V DC.
Which oil filter part number does the Kohler 4CFKM take?
The Kohler 4CFKM uses oil filter part number 994216.
What fuel filter fits the Kohler 4CFKM?
The Kohler 4CFKM uses fuel filter part numbers 993872, 278612.
What air filter fits the Kohler 4CFKM?
The Kohler 4CFKM uses air filter part number 994162.
Troubleshooting
6Fault codes
| Code | Meaning | Cause | Remedy |
|---|---|---|---|
| TP-5393 | Will not crank | Weak or dead battery, 15-amp controller fuse blown, Defective start switch, Remote start cable disconnected, Defective starter solenoid, Battery connections made in reverse | Recharge or replace, Replace fuse, Replace, Reconnect, Replace, Correct |
Symptoms & remedies
| Symptom | Cause | Remedy |
|---|---|---|
| Will not start | Out of fuel, Clogged fuel filter, Air cleaner clogged, Faulty spark plug, Shorted or open ignition coil, Faulty ground, Loose spark plug wire connection, Weak or dead battery, Choke adjustment wrong | Replenish, Replace, Clean or replace, Replace or regap spark plugs, Replace, Clean and retighten, Reconnect and/or tighten, Recharge or replace, Adjust |
| Hard starting | Stale or bad fuel, Air cleaner clogged, Carburetor adjustment wrong, Faulty spark plug, Weak ignition coil | Replace, Clean or replace element, Adjust, Replace or regap spark plugs, Replace |
| Stops suddenly | Out of fuel, Air cleaner clogged, Faulty spark plug, Low oil pressure | Replenish, Clean or replace element, Replace or regap spark plugs, Check oil level |
| Low oil pressure (LOP) shutdown | Correct cause of shutdown | |
| The generator set has automatically stopped. | Low oil pressure, 3 1/2 psi –1 1/2 psi (24.1 kPa) or less. | Eliminate the cause before restarting. |
Fault codes and symptom→remedy steps extracted from this model’s service/owner documentation; verify against the official manual before servicing. Full Kohler 4CFKM troubleshooting guide (45 entries) →
Repair guides
27- Adjusting Valve Clearance
- Battery Cleaning
- Battery Cleaning and Electrolyte Check
- Choke Adjustment Above 10 deg F (-12.2 deg C)
- Choke Adjustment for Operation above 10°F (-12.2°C)
- Cylinder Head Deposit Cleaning
- Cylinder Head Service
- Electronic Governor Adjustment
- Gasoline Carburetor Main and Idle Fuel Adjustment
- Gasoline Carburetor Main and Idle Fuel Mixture Adjustment
- Gasoline Choke Adjustment
- LP Carburetor Adjustment
- LP Gas Carburetor Main Fuel Mixture Adjustment
- LP Gas Idle Fuel Mixture Adjustment
- LP Primary Regulator Adjustment
- Magnetic Pickup Test
- Oil Change
- PowerBoost IIIE Voltage Regulator Adjustment
- PowerBoost IIIE Voltage Regulator Test Procedure
- PowerBoost V Voltage Regulator Adjustment
Step-by-step procedures compiled from the Kohler service manual for this model.
Parts
38| Part # | Description | Qty | System | |
|---|---|---|---|---|
| 11795 | handle and appropriate seal driver | Seal | Amazon eBay $96.99 KuduParts $24.00 | |
| 227647 | Air filter | 1 | Air filter | Amazon eBay |
| 228269 | Air filter | 1 | Air filter | Amazon eBay $14.99 |
| 25 757 14 | Bushing, throttle shaft | 1 | Gasket | buy |
| 25 757 21 | Ball, choke shaft | 1 | Gasket | buy |
| 2575709 | Float Assembly Kit No. 25 757 09 (For WHG-Serles Carbs.) | 1 | Repair kit | Amazon eBay $84.95 |
| 2575711 | Carburetor Repair Kit No. 25 757 11 (For WHG-Series 1") | 1 | Repair kit | Amazon eBay $88.99 |
| 278320 | Exhaust Gasket | Gasket | eBay $25.06 | |
| 278612 | Element, air cleaner | 1 | Air filter | Amazon eBay $29.64 |
| 51 132 02 | Spark Plug | 2 | Spark plug | buy |
| 52 012 07 | Camshaft for engines with Serial No. 1816500646 and earlier | 1 | Camshaft | buy |
| 52 012 08 | Camshaft for engines with Serial No. 1816500656 and later | 1 | Camshaft | buy |
| 52 019 02 | Tappets for engines with Serial No. 1816500656 and later | 4 | Tappet | buy |
| 52 019 03 | Tappets for engines with Serial No. 1816500646 and earlier | 4 | Tappet | buy |
| 52 050 02 | Oil Filter | Oil filter | Amazon eBay | |
| 52 221 01 | Starter brush kit (four replacement brushes and springs) | 4 | Brush | buy |
| 82 755 09 | Camshaft kit containing the 52 012 08 camshaft and 52 019 02 tappets (4) | 1 | Camshaft | buy |
| 82 755 24 | Carburetor Baffle Kit | Spark plug | buy | |
| 92 755 09 | Oil relief valve repair kit containing a new spring, check ball and sleeve | Oil relief valve kit | buy | |
| 993872 | Fuel Filter | 1 | Fuel filter | Amazon eBay $110.25 |
| 993873 | Coolant | 1 | Coolant filter | Amazon eBay |
| 994162 | Air Filter | 1 | Air filter | Amazon eBay |
| 994216 | Oil Filter | 1 | Oil filter | Amazon eBay $35.99 |
| F-239563 | Controller Circuit Board | Controller circuit board | Amazon eBay | |
| FA-277000-B | Deicing Module (includes high-limit thermostat and heater) | 1 | Deicing module | Amazon eBay |
| FA-277000-F | Fuel Vaporizer Line (LP liquid units) | 1 | Hose | Amazon eBay |
| K01017 | Tool for installing Welch plugs | 1 | Tool | Amazon eBay |
| K01018 | Tool for removing Welch plugs | 1 | Tool | Amazon eBay |
| P10-4 | Brushes | Brushes | Amazon Amazon eBay eBay | |
| 25 757 01 | Carburetor Repair Kit | 1 | Service part / kit | buy |
| 25 757 02 | Carburetor Repair Kit | 1 | Service part / kit | buy |
| 25 757 03 | Float Repair Kit | 1 | Service part / kit | buy |
| 278621 | Spark Arrestor | Service part / kit | eBay | |
| 48 755 23 | 11 tooth insert | 1 | Service part / kit | buy |
| 82 755 02 | 9 tooth insert | 1 | Service part / kit | buy |
| 8275513 | Camshaft and four tappets kit | 1 | Service part / kit | Amazon eBay |
| P10-1 | Voltage Regulator PowerBoost™ V | Service part / kit | Amazon Amazon eBay eBay FridayParts $117.99 | |
| P10-2 | Stator | Service part / kit | Amazon Amazon eBay eBay |
Service, wear & replacement parts referenced for this model and its engine — confirm the exact part for your serial number. See the full parts catalog to search and cross-reference.
Fuel consumption
| Rating | Load | L/h | gal/h |
|---|---|---|---|
| 25% | 1.8 | 0.48 | |
| 50% | 2.2 | 0.58 | |
| 75% | 2.6 | 0.7 | |
| 100% | 3.4 | 0.89 |
Available documents
Operator's manual — TP5393 Kohler Genset Install Ops Manual 4CKM 5CKM (09-93) (Kohler)Parts manual — g260412 (Kohler)Service manual — 4 and 5 CKM, CFKM, CKMR, CFKMR (Kohler)Service manual — TP5394 Kohler Gen Service 4CKM 5CKM (12-1994) (Kohler)
This page was generated from the 4 manufacturer documents above by automated extraction; every figure shown is copied from one of them. How the data is compiled.