TECHNICAL & CONSUMER INFORMATION
39
SPECIFICATIONS
DIMENSIONS and WEIGHT
Length
70.7 in (1796 mm)
Width
13.1 in (334 mm)
Height
10.0 in (255 mm)
Dry weight
16.8 lb. (7.6 kg)
ENGINE
Model
GX31
Engine type
4-stroke, overhead-valve, single-cylinder
Displacement
1.9 cu-in (31.1 cc)
Bore & stroke
1.5 x 1.0 in (39 x 26 mm)
Maximum output
1.5 hp (1.1 kW) at 7,000 rpm
Maximum torque
1.21 ft-lbs (1.64 N•m) at 4,500 rpm
Ignition system
Transistorized magneto
Spark plugs
NGK: CR5HSB or DENSO: U16FSR-UB
Starting system
Recoil
Fuel
Unleaded gasoline (86 octane or higher)
Fuel tank capacity
0.69 US qt/22.0 fl oz (650 cc)
Fuel consumption
0.14 gal/hr*
Oil capacity
0.11 US qt/3.38 fl oz (100 cc)
Carburetor type
Diaphragm type (overflow return) with fuel pump
Air cleaner
Single element, semi-dry
Idle speed
3,100 ± 200 rpm
FRAME
Ignition switch
Slide type
Throttle control
Two motion trigger style
Shaft housing pipe diameter
1.0 in (25.4 mm)
Shaft housing pipe thickness
0.063 in (1.6 mm)
Drive shaft
Flex type 0.25 in (6.3 mm)
Shaft support
Nylon liner
Gearbox ratio
1.25
Gearbox type
Sealed ball bearings, bevel cut gears
Blade diameter
8.0 in (203 mm)
Clutch engagement
4,200 ± 200 rpm
Clutch type
2-1/8 inch centrifugal, square drive
*Fuel consumption is approximate. Actual consumption depends on operating load.