Final Setting; Acceleration Test - Craftsman 917.273012 Owner's Manual

20.0 hp electric start 46" mower 6 speed garden tractor
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Chok@
• With engine off tum idle fuel adjusting
needle in (clockwise) dosing it finger
tight and then tum out (counterclock-
wise) 1 tum.
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.
• The high idle is set at the factory and
cannot be adjusted.
• J._
- With throttle control
lever in slow position, engine should
idle at 1200 RPM. If engine idles too
slow or fast, tum idle speed adjusting
screw in or out until correct idle is
attained.
• Idle fuel needle settino - With throttle
control lever in slow position, tum idle
fuel adjusting needle in (clockwise) until
engine speed decreases and then turn
out (counterclockwise)
approximately
3/4 tum to obtain the best low speed
performance.
• Recheck idle speed. Readjust if neces-
sary.
ACCELERATION
TEST -
• 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 govemor, which is factory set for
proper engine speed. Overspeeding
the
engine above the facory high speed set-
ting can be dangerous. If you think the
engine-governed
high speed needs
adjusting, contact your nearest authorized
service center/department,
which has
proper equipment and experience to make
any necessary adjustments.
3O

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