Craftsman 917.293180 Owner's Manual page 18

ENGINE
Maintenance, repair, or replacement of
the emission control devices and sys-
tems, which are being done at the
customers expense, may be performed
by any non-road engine repair establish-
ment or individual. Warranty repairs must
be performed by an authorized engine
manufacturer's service outlet.
TO ADJUST CARBURETOR
The carburetor has a high speed fixed jet
and has been preset at the factory and
adjustment should not be necessary.
However, minor adjustments may be
required to compensate for differences in
fuel, temperature, altitude or load. If the
carburetor does need adjustment,
proceed as follows.
Stop
Throttle Linkage
\
Idle Speed Adjusting
Screw
IDLE RPM ADJUSTMENT
• To adjust idle RPM, rotate throttle
linkage counterclockwise and hold
against stop while adjusting idle speed
adjusting screw to obtain 1750 RPM.
Release throttle linkage.
ACCELERATION TEST
• Move throttle control lever from
"SLOW" to "FAST" position. If engine
hesitates or dies, turn idle needle valve
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 or 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 authorized
service center/department, which has the
proper equipment and experience to
make any necessary adjustments.
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