Robin EY20 Service Manual

4-7 CYLINDER HEAD
The cylinder head is an aluminum die casting, and forms a
Ricardo type combustion.chamber with ample area for high
combustion effeciency. The spark plug
is tilted for easy
mounting
of the fuel tank.
(See Fig.
11.1
Fig. 1 1
4-8 GOVERNOR
The governor is a centrifugal flyweight type which permits
constant operation at the selected speed against load varia-
tions. Governor gear
is installed on the bearing cover with-
out fail, and
it engages with the cam gear afterreassembling.
(See
Fig. 12.)
/
Main Bearing Cover
Governor Sleeve
1 Governor Gear Complete
Fig. 12
-7-

Robin EY20 Specifications

General

Ignition System	Transistorized magneto
Starting System	Recoil starter
Fuel	Unleaded gasoline
Oil Capacity	0.6 liters
Displacement	183 cc
Bore x Stroke	67 x 52 mm
Dry Weight	15 kg