Craftsman 917.273840 - Manual (Page 28)

1. Be sure you have a dean air filter and
the throttle control cable is adjusted
properly (see above).
2. Start engine and allow to warm for five
minutes. Make adjustments with engine
running and shift/motion control lever
in neutral (N) position.
3. Idle speed setting - With throttle control
lever in slow position, engine should
idle at 1750 RPM. If engine idles too
slow or fast, turn idle speed adjusting
screw in or out until correct idle is at­
tained.
4. Idle fuel needle setting - With throttle
control lever in slow position, turn idle
fuel adjustment needle In (clockwise)
until engine begins to die and then turn
out (counterclockwise) until engine
runs rough. Turn needle to a point
midway between those two positions.
5. Recheck idle speed. Readjust if nec­
essary.
ACCELERATION TEST -
6. 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 neces­
sary, 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. Overspeed­
ing the engine above the factory high
speed setting can be dangerous, if you
think the engine-governed high speed
needs adjusting, contact a Sears or other
qualified service center, which has proper
equipment and experience to make any
necessary adjustments.
Throttle Lever
Cable
Clamp
Screw
Idle Speed
Adjusting
Screw —
Idle Fuel
Adjusting
Needle
28