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Home / Small Engines / Kohler Engines / Kohler CV15S

Kohler CV15S Specifications

Engine Model: Kohler Command CV15S

Engine Type: 4-cycle 1-cylinder air-cooled gasoline engine

Total Displacement: 26 cu.in (426 cc)

Rated Engine Power: 15.0 Hp (11.2 kW) at 3600 rpm

Carburetor Type: Float with fixed main jet

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General Technical Data

Engine Model .............. Kohler Command CV15S
Engine Type .............. 4-cycle 1-cylinder vertical shaft air-cooled gasoline engine
Number of Cylinder .............. Single
Displacement, cc (cu.in) .............. 426 (26.0)
Engine Bore, mm (in) .............. 90.0 (3.60)
Engine Stroke, mm (in) .............. 67.0 (2.64)
Engine Power, Hp (kW) .............. 15.0 (11.2)
Maximum Torque, Nm (ft-lb) .............. 33.2 (24.5)
Torque Speed, rpm .............. 2400
Compression Ratio .............. 8.5:1
Cooling System .............. Air-cooled
Air Cleaner .............. Replaceable, high density paper element
Lubrication System .............. Full-Pressure
Oil Pump Type .............. Gerotor
Oil Filter Type .............. Full-flow
Ignition System .............. Electronic with spark advance
Starting System .............. Electric starter
Electrical System Rating, Volts .............. 12

Fuel System

Fuel System Type .............. Carburetor
Carburetor Model .............. Walbro or Nikki
Carburetor Type .............. Float with fixed main jet
Fuel Pump Type .............. Diaphragm, mechanical pump
Fuel Filter Type .............. In-line
Governor Type .............. Centrifugal mechanical flyweight

Dimensions and Weight

Overall Length, mm (in) .............. 450 (17.7)
Overall Width, mm (in) .............. 365 (14.4)
Overall Height, mm (in) .............. 321 (12.7)
Dry weight, kg (lbs) .............. 39.5 (87)

Cylinder Block

Cylinder Bore Inside Diameter (Std), mm (in) .............. 90.000-90.025 (3.5433-3.5443)
Cylinder Bore Inside Diameter (Max), mm (in) .............. 90.063 (3.5458)
Cylinder Bore (Max Out of Round), mm (in) .............. 0.12 (0.0047)
Crankshaft End Play, mm (in) .............. 0.0575-0.4925 (0.0022-0.0193)
Crankshaft Bore (Crankcase), mm (in) .............. 44.965-44.990 (1.7702-1.7712)
Crankshaft Bore (Oil Pan), mm (in) .............. 41.965-42.003 (1.6521-1.6536)
Crankshaft Bore to Crankshaft Clearance, mm (in) .............. 0.0300-0.0880 (0.0011-0.0034)
Connecting Rod to Crankpin Clearance, mm (in) .............. 0.030-0.055 (0.0012-0.0022)
Connecting Rod to Crankpin Side Clearance, mm (in) .............. 0.18-0.41 (0.007-0.016)
Connecting Rod to Piston Pin Clearance, mm (in) .............. 0.015-0.028 (0.0006-0.0011)
Connecting Rod Journal Outside Diameter, mm (in) .............. 38.958-38.970 (1.5338-1.5343)
Camshaft End Play, mm (in) .............. 0.088-0.393 (0.003-0.015)
Camshaft Clearance, mm (in) .............. 0.025-0.105 (0.00098-0.0041)
Camshaft Bore Inside Diameter, mm (in) .............. 20.000-20.025 (0.7874-0.7884)
Camshaft Bearing Outside Diameter, mm (in) .............. 19.962-19.975 (0.7859-0.7864)

Cylinder Head and Valves

Cylinder Head (Max Out of Flatness), mm (in) .............. 0.076 (0.003)
Hydraulic Valve Lifter to Crankcase Clearance, mm (in) .............. 0.0124-0.0501 (0.0005-0.0020)
Valve Stem to Valve Guide Clearance (Intake), mm (in) .............. 0.038-0.076 (0.0015-0.0030)
Valve Stem to Valve Guide Clearance (Exhaust), mm (in) .............. 0.050-0.088 (0.0020-0.0035)
Valve Guide Inside Diameter, mm (in) .............. 7.038-7.058 (0.2771-0.2779)
Valve Minimum Lift (Intake), mm (in) .............. 8.96 (0.353)
Valve Minimum Lift (Exhaust), mm (in) .............. 9.14 (0.360)
Valve Face Angle, degrees .............. 45
Valve Seat Angle, degrees .............. 89
Valve Insert Outside Diameter (Intake), mm (in) .............. 37.987-38.013 (1.5015-1.5024)
Valve Insert Outside Diameter (Exhaust), mm (in) .............. 33.987-34.013 (1.3434-1.3443)
Valve Head Diameter (Intake), mm (in) .............. 35.63-35.37 (1.4083-1.3980)
Valve Head Diameter (Exhaust), mm (in) .............. 31.63-31.37 (1.2502-1.2399)
Valve Stem Diameter (Intake), mm (in) .............. 6.982-7.000 (0.2749-0.2756)
Valve Stem Diameter (Exhaust), mm (in) .............. 6.970-6.988 (0.2744-0.2751)

Piston and Piston Rings

Piston Outside Diameter (Std), mm (in) .............. 89.951-89.969 (3.5413-3.5420)
Piston Outside Diameter (Wear Limit), mm (in) .............. 89.824 (3.5363)
Piston to Cylinder Bore Clearance, mm (in) .............. 0.031-0.043 (0.0012-0.0016)
Piston to Piston Pin Clearance, mm (in) .............. 0.006-0.017 (0.0002-0.0007)
Piston Pin Bore Inside Diameter, mm (in) .............. 19.006-19.012 (0.7483-0.7485)
Piston Pin Outside Diameter, mm (in) .............. 18.995-19.000 (0.7478-0.7480)
Top Ring Groove Side Clearance, mm (in) .............. 0.060-0.105 (0.0023-0.0041)
Second Ring Groove Side Clearance, mm (in) .............. 0.040-0.085 (0.0015-0.0033)
Oil Ring Groove Side Clearance, mm (in) .............. 0.036-0.186 (0.0014-0.0073)
Top Ring End Gap, mm (in) .............. 0.28-0.51 (0.011-0.020)
Second Ring End Gap, mm (in) .............. 0.22-0.48 (0.008-0.018)
Oil Ring End Gap, mm (in) .............. 0.250-0.760 (0.0098-0.0299)

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