CHOKE
MAON ETIC
COIL
ANO
(jORE
AS5
EMBLY
BIM ETAL
HINGEO
I
GOVERNOR ADJUSTMENT
Whete engine
speed
is
governor
controlled, the
governor
is set
at the factory
to
allow
a nominal engine
speed
of
1875 rpm
at no
load operation.
Proper
governor
adjust-
ment
is one of the most important
factors
in maintailing
the powet
and speed desited
from the engine.
Before making
governor
adjustment, run the engine
about
15
minutes
to reach
notmal operatilg tempetatute.
It is
difficult to determine if, after long usage, the
governor
spring has become
fatigued.
If,
aftet
properly
making
all othe! adjustments, the
regulation
is
still
erratic,
install
a new spring (Figure 11).
A tachometer for checking engine speed is tequired
for
accurate
governor
adjustment.
Check the
governor
armr linkage, throttle
shaft
and
lever for binding
or
excessive wear at coflnecting
points,
A
binding condition at any point will cause the
govelrior
to act slowly and regulation will be
poot. Excessive
looseness
will cause a hunting condition and regula-
CARBURETOR
FIGURE
II.
GOVERNOR ADJ
USTM ENTS
FIGURE
IO.
SISSON CHCKE
l9
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