Final Setting - Craftsman 917.272160 Owner's Manual

20.0 hp electric start 46" mower automatic lawn tractor
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2.
With engine
off turn idle fuel adjusting
needle
in (clockwise)
closing
it finger
tight and then turn out
(counterclock-
wise)
1 turn.
FINAL SETTING
-
1. Start engine and allow to warm for five
minutes.
Make final adjustments
with
engine
running
and shift!motion
control
lever in neutral
(N) position.
NOTE:
The high idle is set at the factory
and cannot
be adjusted.
2.
Idle speed setting
- With throttle
control
lever in slow
position,
engine
should
idle at t200
RPMo If engine
idles too stow or fast, turn idle speed
adjusting
screw
in or out until correct
idle is attained.
3.
Idle fuel needle
setting
- With throttle
control
lever in slow position,
turn idle
fuel adjusting
needle
in (clockwise)
until engine
speed
decreases
and
then turn out
(counterclockwise)
approximately
3/4 turn to obtain the
best low speed
performance.
4.
Recheck
idle speed.
Readjust
if
necessary.
ACCELERATION
TEST
5.
Move throttle
control
lever from slow to
fast position.
If engine
hesitates
or
dies, turn idle fuel adjusting
needle
out
(counterclockwise)
1/8 turn.
Repeat test and continue
to adjust,
if
necessary,
until engine
accelerates
smoothly.
High speed stop is factory
adjusted.
Do
not adjust-damage
may result.
IMPORTANT:
Never tamper
with the
engine
governor,
which is factory
set for
proper
engine
speed.
Overspeeding
the
engine
above
the factory
high speed
setting
can be dangerous.
If you think the
engine-governed
high speed
needs
adjusting,
contact
your nearest
autho-
rized service
center/department,
which
has proper
equipment
and experience
to
make any necessary
adjustments.
3O

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