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Kohler K241 Maintenance
| Engine Model: Kohler K241 (K241A, K241S, K241QS) |
| Engine Type: 4-cycle L-head 1-cylinder horizontal shaft gasoline engine |
| Total Displacement: 23.9 cu.in (391 cc) |
| Rated Engine Power: 10 Hp (7.5 kW) at 3600 rpm |
| Fuel System: Carburetor with fixed main jet or adjustable main jet |
Engine Oil Type (Summer Time) .............. SAE 30W
Engine Oil Type (Winter Time) .............. SAE 5W-20, 5W-30
Oil Classification .............. API Service SF or SG
Oil Capacity (K241), L (qts) .............. 1.90 (2.02)
Oil Capacity (K241A Special Oil Pan), L (qts) .............. 2.21 (2.33)
Air Filter Element Part Number .............. 235116-S
Air Filter Pre-Cleaner Part Number .............. 237421-S
Engine Fuel Filter Part Number .............. 25-050-07-S
Spark Plug Type .............. Champion RH10
Spark Plug Size, mm (in) .............. 14.0 (0.553)
Spark Plug Gap, mm (in) .............. 0.65 (0.0256)
Breaker Point Gap (Nominal), mm (in) .............. 0.50 (0.020)
Spark Plug, Nm (ft-lb) .............. 25-30 (18-22)
Change Engine Oil .............. Every 25 Hours
Service Pre-Cleaner .............. Every 25 Hours
Clean Cooling Fins .............. Every 50 Hours
Clean Air Cleaner Paper Element .............. Every 100 Hours
Check Spark Plug .............. Every 100 Hours
Check lgnition Timing .............. Every 500 Hours
Check and Adjust Valve Clearance .............. Every 500 Hours
Service Cylinder Head .............. Every 500 Hours
Low Idle (Adjustable Jet Kohler Carb) .............. 2-1/2 turns
High Idle (Adjustable Jet Kohler Carb) .............. 2 turns
Low Idle (Adjustable Jet Walbro Carb) .............. 1-3/4 turns
Main Fuel (Adjustable Jet Walbro Carb) .............. 1-1/8 turns
Low Idle (Fixed Jet Walbro Carb) .............. 1-1/4 turns
Cylinder Head Bolts, Nm (ft-lb) .............. 34-41 (25-30)
Flywheel, Nm (ft-lb) .............. 68-81 (50-60)
Spark Plug, Nm (ft-lb) .............. 25-30 (18-22)
Connecting Rod, Nm (ft-lb) .............. 32.1 (23.8)
Governor Bushing, Nm (ft-lb) .............. 11.2-13.6 (8.3-10.1)
Fuel Pump Mounting Screws, Nm (ft-lb) .............. 4.2-5.1 (3.1-3.8)
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