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7.
GOVERNOR ADJUSTMENT
Model
EY
15V
and
EY20V
employ a centrifugal flyweight type governor. The governor is mounted
on
the
governor gear, and the throttle valve of the carburetor
is
automatically regulated by a lever which is connect-
ed
to
the governor in order to maintain constant engine speed against load variations.
The adjustment procedure
of
the governor
is
as
follows
1)
Turn the speed control lever towards high speed,
and confirm that the carburetor throttle valve is
fully opened.
(See Fig.
45.)
Throttle Shaft
Hook Hole
Low
Speed High Speed
*The point where the governor spring
is
to be
hooked
For
EY15V
the governor spring is
to
be hooked
at the points
2
A,
while it
is
to be hooked at
the points
2
++
B
for
EY20V.
(See Fig.
46.)
Note: The governor lever
for
E
Y20V
has an em-
bossed
mark
20,
while
the
lever
of
E
Y
15V
has no mark on it.
The Dimensions
of
the governor
spring
to
be
hooked are different each other according
to
the
engine revolution.
Discrimination according to the dimensions:
EYl5V, EY20V
(3600
-
3800
rpm)
l-”4
Fig.
47
Fig.
45
h
Governor Lever
Hooking Points
(Common to
3000,3600
-
3800
rpm)
Fig.
46
EYl5V, EY20V
(3000
rpm)
-
31
-