Chapter
1
Technical
Specifications
and
Data
1-1 Technical specifications in English Units
Model
Item
170F 178F 186F
Type Single vertical cylinder, 4-stroke, air-cooled, direct injection
Bore x Stroke (in.) 2.76 x 2.17 3.01 x 2.44 3.39 x 2.76
Displacement (cu. in.) 13.36 18.67 25.51
Speed (rpm) 3600 3600 3600
Continuous 4.0 5.9 8.85 Output
(HP)
Maximum 4.5 6.6 9.85
Fuel tank capacity .66 .9 1.45
(US gallons)
Full 27.1 37.17 55.75 Lube-oil
Capacity
(oz)
Effective 8.45 13.51 20.27
Crankshaft direction Clockwise from flywheel end
Cooling type Forced air cooled by flywheel fan
Lubrication type Pressure splash
Starting system Recoil manual start and or optional electric start
Dry weight (recoil) (lbs) 60 73 106
Dry weight (elec.) (lbs) 68 84 117
Dimensions (LxWxH) 13.1 x 14.8 x 16.3 15.1 x 16.6 x 17.7 16.4 x 17.4 x 19.5
(inch)
7
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