Features:
1) Type: single-cylinder, vertical, 4-stroke, air-cooled, direct injection
2) PTO shafts: crankshaft, camshafts(camshaft PTO speed is 1/2 of crankshaft)
3) Direction of rotation: clockwise (view from flywheel)
4) Fuel types: diesel 0#(summer), diesel -10# (winter)
5) Lube brand: SAE10W30 (above CC grade)
6) Engine speed: 3,000/3,600r/min
7) Recoil starter or electric starting

Specifications:
1) Model YK186F:
a) Bore x stroke: 86 x 70mm
b) Max. output: 6.3kW (8.6HP) / 7.4kW (10.0HP)
c) Content output: 5.7kW (7.8HP) / 6.6kW (9.0HP)
d) Fuel consumption: 273g/kW (201g/HP), 286g/kW (210g/HP)
e) Fuel tank capacity: 5.5L
f) Lube oil capacity: 1.7L
g) Displacement: 406cc
h) Dimensions: 441 x 417 x 494mm
i) N.W.: 48kg
2) Model YK178F:
a) Bore x stroke: 78 x 62mm
b) Max. output: 4.0kW (5.4HP) / 4.4kW (6.0HP)
c) Content output: 3.7kW (5.4HP) / 4.0kW (5.4HP)
d) Fuel consumption: 280g/KW (206g/HP), 293g/kW (215g/HP)
e) Fuel tank capacity: 3.5L
f) Lube oil capacity: 1.1L
g) Displacement: 296cc
h) Dimensions: 421 x 383 x 450mm
i) N.W.: 33kg