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6. GOVERNER ADJUSTMENT
Models EY15-3 and EY20-3 employ a centrifugal fly-
weight type governor. The governor is mounted on
the governor gear and the throttle valve of the car-
buretor is automatically regulated by a lever which is
connected to the governor in order to maintain con-
stant engine speed against load variations.
The adjustment procedure of the governor is as fol-
lows (See Figs. 6-1 and 6-2.):
1) Connect the carburetor throttle lever to the
governor lever with the governor rod and rod
spring, and mount the governor lever onto the
governor shaft.
2) Install the speed control lever to the cylinder
head.
3) Connect the governor lever to the speed con-
trol lever with the governor spring.
*The hole where the governor spring is to be
hooked :
For EY15-3 the governor spring is to be hooked
to the hole 1, while it is to be hooked to the hole 2
for EY20-3.
4) Turn the speed control lever towards high
speed, and confirm that the carburetor throttle
valve is fully opened.
5) Insert a (-) screwdriver in the groove of the
governor shaft, turn it clockwise fully until the
governor shaft no longer moves, and then lock
the governor lever to the governor shaft with
the governor lever tightening bolt.
(See Fig.6-4)
Fig. 6-2
Fig. 6-4
Fig. 6-1
Fig. 6-3
Bolt
Speed Control
Lever
Rod Spring
Governor Lever
Governor
Spring
Governor
Rod
Carburetor
Governor
Shaft
Speed Control Lever
Long Hook
High Speed
Governor Spring
Governor Lever
Low Speed Stopper
(Carburetor)
High Speed Stopper
(Speed Control Lever)
Governor Lever