Craftsman 917272201 lawn tractor

User Manual - Page 30

For 917272201.

PDF File Manual, 60 pages, Download pdf file

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PRELIMINARYSETTING*
, Be sureyou haveacleanairfilter,and
the throttlecontrolcableandchokeare
adjustedproperly(see above).
With engine offturn idle mixture screw
in (clockwise) closing it finger t!ght
and then turn out (counterclockwise)
1-1/4 to 1-1/2 turns.
FINAL SETTING -
. Start engine and allow to warm for five
minutes° Make final adjustments with
engine running and shift/motion control
lever in neutral (N) position.
With throttle control lever in slow posi-
tion, hold throttle lever against idle
speed screw and adjust idle speed
screw to obtain 1300 to t500 RPM.
While still holding throttle lever against
idle speed screw, turn idle mixture
screw In (clockwise) until engine begins
to die and then turn out (counterclock-
wise) until engine runs rough, Turn
screw to a point midway between those
two positions.
Continue to hold throttle lever against
idle speed screw and adjust idle speed
screw to obtain 1200 RPM, if the gov-
erned idle spring is red, or 900 RPM, if
the governed idle spring is white. Re-
lease throttle lever.
ACCELERATION TEST -
Move throttle control lever from slow to
fast position, If engine hesitates or dies,
turn idle mixture screw out (counter-
clockwise) 1/8 turn. Repeat test and
continue to adjust, if necessary, until en-
gine accelerates smoothly.
High speed stop is factory adjusted. Do
not adjust - damage may result,
IMPORTANT: Never tamper with the en-
gine governor, which is factory set for
proper engine speed. Overspeeding the
engine above the factory high speed set-
ting can be dangerous, tf you think the
engine-governed high speed needs ad-
justing, contact your nearest authorized
service center/department, which has
proper equipment and experience to
make any necessary adjustments.
Governed Idle Spring Stop
(Red or White)
Choke I i Clamp
Throttle
.evBr_
Idle Speed
3O
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