Craftsman 944.627592 Owner's Manual page 18

SERVICE AND ADJUSTMENTS
ENGINE
Maintenance, repair, or replacement of the emission con-
trol devices and systems, which are being done at the
customers expense, may be performed by any non-road
engine repair establishment or individual. Warranty repairs
mustbe performed by an authorized engine manufacturer's
service outlet.
TO ADJUST THRO'B'LE CONTROL CABLE
(See Fig. 29)
• Loosen cable clamp screw to allow cable to move.
• Move throttle control lever on upper handle to "FAST"
position.
• Pull throttle cable out to end of travel
• Hold cable in this position and tighten clamp screw
securely.
CLAMP
SCREW
THROTTLE
CABLE
FIG. 29
TO ADJUST CARBURETOR (See Fig. 30)
The carburetor has a high speed jet and has been preset at
the factory and adjustment should not be necessary. How-
ever, minor adjustments may be required to compensate
for differences in fuel, temperature, altitude or load. If the
carburetor does need adjustment, proceed as follows.
IDLE RPM ADJUSTMENT
• TO adjust idle RPM, rotate throttle linkage counter-
clockwise and hold against stop while adjusting idle
speed adjusting screw to obtain 1750 RPM. Re.lease
throttle linkage.
ACCELERATION TEST
• Move throttle control lever from "SLOW" to "FAST"
position. If engine hesitates or dies, turn needle valve
out (counterclockwise) 1/8 turn. Repeat test and
continue to adjust, if necessary, until engine acceler-
ates 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 THINKTHE 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.
THROTTLE"
LINKAGE
IDLE SPEED
ADJUSTING
SCREW
IDLE NEEDLE
VALVE
FIG. 30
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