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1. SPECIFICATIONS
Model EX21D
Type
Air-Cooled, 4-Cycle, Slant Single-Cylinder,
Horizontal P.T.O. Shaft, OHC Gasoline Engine
Bore & Stroke mm (in.)
67 x 60 (2.64 x 2.36)
Piston Displacement ml (cu.in.) 211 (12.87)
Compression Ratio 8.5
Continuous Output kW(HP)/r.p.m.
3.2(4.4)/3000
3.7(5.0)/3600
Maximum Output kW(HP)/r.p.m. 5.1(7.0)/4000
Maximum Torque N
m / r.p.m.
(kgf
m / r.p.m.)
(ft
lb. / r.p.m.)
13.9/2500
(1.41/2500)
(10.26/2500)
Direction of Rotation Counterclockwise as viewed from the P.T.O. shaft side
Valve Arrangement Overhead cam system
Cooling System Forced air cooling system
Lubrication System Splash lubrication system
Lubricant
Automobile engine oil ; Grade SE or higher (SG,SH or SJ in recomended)
SAE 10W-30-----Under ordinary atmospheric temperatures
SAE 5W-30-------In cold areas
Capacity of Lubricant L 0.6
Throttle body Electronic Fuel injection
Fuel Automobile unleaded gasoline
Fuel Consumption Rate
g/kW
h (g/HP
h)
367 (270) at continuous rated output
Fuel Supply System Diaphragm pump (Pulse type)
Fuel Tank Capacity L 3.6
Ignition System Transistorized magneto
Spark Plug NGK BR-6HS
Starting System Recoil starter
Governor System Centrifugal flyweight system
Dry Weight kg (lb.) 16 (35.28)
Dimensions (L x W x H) mm (in.) 321 x 369 x 335 (12.6 x 14.5 x 13.2)