Service manual

Specifi cations
762 690 01 Rev. C KohlerEngines.com
ENGINE IDENTIFICATION NUMBERS
Kohler engine identifi cation numbers (model, specifi cation and serial) should be referenced for effi cient repair,
ordering correct parts, and engine replacement.
GENERAL SPECIFICATIONS
3,6
CH940 CH960 CH980 CH1000
Bore 90 mm (3.54 in.)
Stroke 78.5 mm (3.1 in.)
Displacement 999 cc (61 cu. in.)
Oil Capacity (refi ll) 2.7 L (2.9 U.S. qt.)
Maximum Angle of Operation (@ full oil level)
4
25°
TORQUE SPECIFICATIONS
3,5
CH940 CH960 CH980 CH1000
Blower Housing and Sheet Metal
M6 Screw
New, Untapped Hole (casting)
Used, Tapped Hole (casting)
New, Extruded Hole (sheet metal)
Used, Extruded Hole (sheet metal)
Mounting Clip (valley baffl e)
10.7 N·m (95 in. lb.)
7.3 N·m (65 in. lb.)
4.0 N·m (35 in. lb.)
2.0 N·m (18 in. lb.)
2.5 N·m (22 in. lb.)
Carburetor, Intake Manifold, and Air Cleaner
Intake Manifold Mounting Fastener (torque in 2 increments) fi rst to 16.9 N·m (150 in. lb.)
fi nally to 22.6 N·m (200 in. lb.)
Carburetor/Air Cleaner Mounting Nut 7.9 N·m (70 in. lb.)
Carburetor Fuel Bowl Screw 2.5 N·m (22 in. lb.) ± 0.3 N·m (3 in. lb.)
Air Cleaner Mounting Screw (into intake manifold) 9.9 N·m (88 in. lb.)
Closure Plate
Closure Plate Fastener 24.4 N·m (216 in. lb.)
Connecting Rod
Cap Fastener (torque in increments) 11.3 N·m (100 in. lb.)
Control Bracket
Mounting Screw (into intake manifold from air cleaner) 9.9 N·m (88 in. lb.)
3
Values are in Metric units. Values in parentheses are English equivalents.
4
Exceeding maximum angle of operation may cause engine damage from insuffi cient lubrication.
5
Lubricate threads with engine oil prior to assembly.
6
Any and all horsepower (hp) references by Kohler are Certifi ed Power Ratings and per SAE J1940 & J1995 hp
standards. Details on Certifi ed Power Ratings can be found at KohlerEngines.com.
Model . . . . . . . . . . . . . . . . . . . . . CH940
Command Engine
Horizontal Shaft
Numerical Designation
Specifi cation . . . . . . . . . . . . . . . CH940-0001
Serial . . . . . . . . . . . . . . . . . . . . . 3923500328
Year Manufactured Code Factory Code
Code Year
39 2009
40 2010
41 2011