Robin EH12 Service Manual

1. SPECIFICATIONS
~~ ~~ ~
EH12
EH12B EH12DS
EH12D
EH12BS
Model
TY Pe
Air-Cooled, 4-Cycle, Single-Cylinder. Horizontal P.T.O. Shaft, Gasoline Engine
Bore
X Stroke
121 cc (7.38 cu.in.)
Piston Displacement
60
X 43 mm (2.36 X 1.57 in.)
Compression Ratio
output
8.5
Continuous
4.0 /4000 HP/rpm
4.0/2000 HP/rpm
Max.
2.5/3000 HP/rprn 2.813600 HP/rpm 2.5/1500 HP/rpm 2.8/1800 HP/rpm
Max. Torque 0.76/2600 kg*m/rpm
1.52
/ 1300 kgm/rpm
Direction
of Rotation Counterclockwise As Viewd From P.T.O. Shaft Side
Cooling system Forced Air Cooling
Valve Arrangement Overhead Valve
Lubrication
Splash Type
Lubricant Automobile Oil
SAE #20, #30 or 1 OW-30
Capacity of Lubricant
Horizontal Draft, Float Type Carburetor
0.6 liters (0.16
U.S. gal.)
Fuel
230 gr/HP-h At Continuous Rated Output Fuel Consumption Rate
Automobile Gasoline
Fuel Feed System
3.6 liters (0.95
U.S. gal.)
Fuel Tank Capacity
Gravity Type
Ignition System
NGK B6HS
Spark Plug
Flywheel Magneto (Solid State)
Charging Capacity
i 12V- 1.3~ 1
1 12V- 1.3A
Starting System
Starter
Recoil Starter
Recoil and Electric
Starter Recoil and Electric
Recoil Starter
Speed Reduction
Centrifugal Flyweight System
Governor System
-
21 Cam Shaft Drive
Dry Weight
366mm (14.41 in.) 366mm (14.41 in.)
366mm (14.41
in.)
366mm (14.41 in.) Height
345mm (13.58in.)
330rnm (12.99in.)
345mm (13.58in.)
330mm (12.99in.)
Width
Dimensions
301 mm(11.85in.)
301 rnm (11.85in.)
303mm (11.93in.) 303mm (11.93in.) Length
16.5kg (36.3Ib.)
14.0kg (30.8Ib.)
17.0kg (37.4Ib.)
14.5kg (31.91b.)
-1-

Robin EH12 Specifications

General

Ignition System	Transistorized magneto ignition
Starting System	Recoil starter
Bore x Stroke	60 mm (2.36 in) x 43 mm (1.69 in)
Max Output	3.6 kW (4.8 HP) at 3, 600 rpm
Engine Type	4-Cycle, Air cooled, Single cylinder, OHV