Robin EH12 Service Manual

Procedures
~~~~
(1) Loosen adjusting screw on rocker arms.
(2) Pull out rocker arm shaft from the intake
side
of the cylinder head.
(See Fig.
5-22.)
(3) Remove rocker arms after removing
rocker shaft.
(4) Press down spring retainer and slide it to
release from the groove of valve stem,
then remove spring retainer and valve
spring
(See Fig. 5-23.)
(5) Remove intake and exhaust valve.
Step
Part
to remove
29 Intake valve
and Exhaust
valve
"
-
Remarks
Inspect valves, valve
seats and guide.
Do not remove valve
guides unless they are
worn beyond
the limit
shown
in page 57.
Tool
ROCKER ARM
ROCKER
SHAFT
SPRING RETAINER
VALVE SPRING
SCREW
DCS.
I
INTAKE VALVE
II I\
Fig. 5-23 Fig. 5-24
- 30 -

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