ROLL
PIN
ROTATE
GOVERNOR
CUP
FITS
INTO
THE
METAL
LINED
HOLE
OR
PLASTIC
BUSHING
IN
THE
CUP
SO
THAT
ROLL
PIN
,’
GOVERNOR
ARM
GOVERNOR
SHAFT
FIGURE
9-13.
GEAR COVER ASSEMBLY
GEAR COVER
Remove the flywheel key and gear cover mounting
screws. Gently tap the gear cover with a plastic-faced
hammer to loosen
it
(see Figure 9-13).
When installing thegear cover, makesure that the pin
in the gear cover engages the nylon lined (smooth)
hole in the governor cup. Turn the governor cup
so
that the nylon lined hole is at the three o’clock posi-
tion. Use a small amount
of
grease to assist in holding
governor cup in position. The rounded side of the
governor yoke must ride against the governor cup.
Turn the governor arm and shaft clockwise as far as
possible and hold in this position until the gear cover
is installed flush against the crankcase. Be careful not
to damage the gear cover oil seal.
Refer
to
Oil Seals in this section if replacing the gear
cover oil seal.
GOVERNOR CUP
With the gear cover removed, the governor cup can
be taken off after removing the snap ring from the
camshaft center pin, Figure
9-14.
Catch the flyballs
while sliding the cup off.
Replaceanyflyball thatisgrooved orhasaflatspot. If
the arms
of
the ball spacer are worn or otherwise
damaged, remove the spacer by splitting with a
chisel. Use a press to install a new spacer on the
camshaft gear. The governor cup must spin freely on
the camshaft center pin without excessive looseness
or wobble. If the racesurface of the cup is grooved or
rough, replace it with a’new one.
The governor cup and flyballs are easily installed
when the camshaft assembly is removed from the
314
IN.1
VT-1027
GOVERNOR
IF
FEELER
WILL
ENTER HOLE
1/2 IN.
(13
mm)
BALL
HAS
FALLENOUT,
engine. If necessary, the engine may be tilted up
to
install the cup and flyballs. Put the flyballs between
the spacer arms and install the cup on the center pin,
Lock the cup in place with the snap ring.
The camshaft center pin extends out 3/4-inch (19
mm) from the end of the camshaft. This distance
provides an in and out travel distance of 7/32-inch
(5.6
mrn) forthegovernorcup, as illustrated. Hold the
cup against the flyballs when measuring. If the dis-
tance is less, the engine may race, especially at no
load. Remove the center pin and press in a new pin
3/4
IN.
Wmm)
,
.
U
VT-1028
FIGURE
9-14.
GOVERNOR
CUP
9-6
Redistribution or publication of this document
by any means, is strictly prohibited.
Redistribution or publication of this document
by any means, is strictly prohibited.
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