GASOLINE AND DIESEL ENGINES SPECIFICATIONS

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Home / Small Engines / Kohler Engines / Kohler K241

Kohler K241 Specifications

Engine Model: Kohler K241
Engine Type: 4-cycle 1-cylinder air-cooled gasoline engine
Total Displacement: 23.9 cu.in (391 cc)
Rated Engine Power: 10.0 Hp (7.5 kW) at 3600 rpm
Carburetor Type: Adjustable or fixed main jet

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General Technical Data

Engine Model .............. Kohler K241 (K241A, K241S, K241QS)
Engine Type .............. 4-Cycle, one cylinder air-cooled gasoline
Number of Cylinders .............. Single
Displacement, L (cu in) .............. 0.391 (23.9)
Engine Bore, mm (in) .............. 82.5 (3.25)
Engine Stroke, mm (in) .............. 73.0 (2.88)
Maximum Horse Power, hp (kW) .............. 10.0 (7.5)
Rated Engine Speed, rpm .............. 3600
Fuel System .............. Carburetor
Carburetor Model .............. Kohler/Walbro
Carburetor Type .............. Fixed main jet or adjustable main jet
Lubrication System .............. Splash type
Cooling System .............. Forced-air
Ignition System .............. Magneto or battery
Starter Type .............. Recoil or electric

Cylinder Block

Sleeve Internal Diameter, mm (in) .............. 82.5627-82.5881 (3.2505-3.2515)
Piston Skirt Outer Diameter, mm (in) .............. 82.3290-82.3773 (3.2413-3.2432)
Top Compression Ring End Gap, mm (in) .............. 0.177-0.432 (0.007-0.017)
Second Compression Ring End Gap, mm (in) .............. 0.177-0.432 (0.007-0.017)
Connecting Rod Small End Inside Diameter, mm (in) .............. 21.8338-21.8415 (0.8596-0.8599)
Piston Pin Outside Diameter, mm (in) .............. 21.8211-21.8262 (0.8591-0.8593)

Cylinder Head and Valves

Valve Clearance (Intake), mm (in) .............. 0.20-0.25 (0.0079-0.0099)
Valve Clearance (Exhaust), mm (in) .............. 0.43-0.48 (0.0169-0.0189)
Intake Valve Head Diameter, mm (in) .............. 34.798-35.052 (1.370-1.380)
Exhaust Valve Head Diameter, mm (in) .............. 28.448-28.702 (1.120-1.130)
Stem Outside Diameter (Intake, Std), mm (in) .............. 7.887-7.899 (0.3105-0.3110)
Stem Outside Diameter (Exhaust, Std), mm (in) .............. 7.833-7.851 (0.3084-0.3091)
Valve Guide Inside Diameter (Intake, Exhaust), mm (in) .............. 7.894-7.919 (0.312-0.313)
Valve Seat Angle (Intake, Exhaust), degrees .............. 89
Valve Seat Width (Intake), mm (in) .............. 0.936-1.139 (0.037-0.045)
Valve Seat Width (Exhaust), mm (in) .............. 0.936-1.139 (0.037-0.045)
Valve Guide Depth (Intake), mm (in) .............. 40.126 (1.586)
Valve Guide Depth (Exhaust), mm (in) .............. 37.874 (1.497)
Valve Face Angle (Intake, Exhaust), degrees .............. 45

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