Every 200 Hours; Carburetor Adjustment - Craftsman 917.255813 Owner's Manual

REPLACE IN-LtNE FUEL FILTER
ao Remove Hose Clamps from Fuel Lines at Fuel Filter (Fig.
36),,
bo Remove Fuel Filter,
c, Ptace new Fuel Filter in position with fuel line (arrow on
side of FPter in direction of Fuel Filter) and reinstall Hose
Clamps.
BE SURE THERE ARE NO FUEL LINE
LEAKS AND THAT HOSE CLAMPS ARE
PROPERLY INSTALLED°
FUEL
HOSE CLAMPS
FIGURE 36
As NEEOEa
1. CARBURETOR ADJUSTMENT
Never attempt to change maximum engine speed This is
preset at the factory and should only be changed by a quali-
fied service technician who has the necessary equipment
a, Move Throttle Control (on the dashboard) to "SLOW '_
position.
b Check that two holes "A" line up, If not, loosen Clamp
Screw and adjust Throttle Cable until the two holes do
line up (Fig° 37 _ Inset).
REFER TO "STARTING THE ENGINE",
PAGE 6,,
c, Start Engine and allow to warm for five minutes° Make
final adjustments with engine running,
do High Speed is fixed, no adjustment is possible,
e,, Adjust Carburetor Mixture Screw to suggested initial
setting.
-- Turn Mixture Screw clockwise (('_'_) closing finger
tight ONLY, and then turn counterclockwise (t-'n)
1 - t/2 turns (Fig. 38), CAUTION: VALVE MAY
BE DAMAGED IF TURNED IN TOO FAR°
f, Hold Governor Control against Throttle Stop° Turn
Mixture Screw clockwise (/_) untii engine just starts
to slow (Fig,
38),
g, Turn Mixture Screw counterclockwise (1(_) 1/2 turn,
ho Move Throttle Control to "FAST", If engine hesitates
or dies, turn Mixture Screw 1/4 turn counterclockwise
(F-"x) until engine will accelerate as Throttle Control
÷ _1 I1 It II
Is moved from SLOW to FAST ,
THROTTLE
CABLE
HOLES "'A'"
THROTTLECABLE
FIGURE 37
THROTTLE STOP
SCREW
GOVERNOR
CONTROL
- 17 - FIGURE 38