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Item Description
Make / Designation Kohler, CH23S, 4–stroke, V–Twin
Air Cooled, OHV
Number of Cylinders 2
Bore x Stroke 3.15” x 2.64” (80 mm x 67 mm)
Total Displacement 41.1 Cubic Inches (674 cc)
Compression Ratio 8.5:1
Dry Weight (approximate) 90 Pounds (41 Kilograms)
Fuel Unleaded, Regular Gasoline (Minimum 87 Octane)
Fuel Tank Capacity 7.5 U.S. Gallons (28.4 Liters)
Governor Mechanical
Idle Speed (no load) 1400 + 50 RPM
High Idle (no load) 3400 + 50 RPM
Engine Oil See Operator’s Manual
Oil Pump Gear driven trochoid type
Crankcase Oil Capacity 2 U.S. Quart (1.9 Liters) with filter
Starter 12 VDC
Kohler
Engine
ProCore 648 Page 3 – 3 Kohler Engine