Service Manual

Table Of Contents
Workman HD
Page 5 − 2
Kohler Air Cooled Gasoline Engine
Specifications
Item Description
Make / Designation Kohler, CH680−3025, 4−stroke, V−Twin
Air Cooled, OHV
Number of Cylinders 2
Bore x Stroke 3.15 in x 2.64 in (80 mm x 67 mm)
Total Displacement 41.1 in
3
(674 cc)
Compression Ratio 8.5:1
Governor Mechanical
Idle Speed (no load) 1200 + 100 RPM
High Idle (no load) 3600 + 50 RPM
Oil Pump Gear driven trochoid type
Engine Oil See Operator’s Manual
Crankcase Oil Capacity 2 U.S. quarts (1.9 liters) with filter
Fuel Unleaded, Regular Gasoline (Minimum 87 Octane)
Fuel Pump Diaphragm (engine mounted)
Fuel Tank Capacity 6.5 U.S. gallons (24.6 liters)
Starter 12 VDC
Alternator/Regulator 12 VDC 25 Amp
Dry Weight (approximate) 90 pounds (41 kilograms)