Carburetor - Craftsman 917.250480 Owner's Manual

OPERATION
ADD GASOLINE
o Fill fuel tank. Use fresh, clean, regular unleaded
gasoline. (Use of leaded gasoline will increase carbon
and lead oxide deposits and reduce valve life).
iMPORTANT: WHEN OPERATtNGtNTEMPERATURES
BELOW 32°F(0°C), USE FRESH, CLEAN WINTER GRADE
GASOLINE TO HELP INSURE GOOD COLD WEATHER
STARTING.
WARNIING: Experience indicates that atcohoi blended
fuels (called gasohol or using ethanol or methanol) can
attract moisture which leads to separation and formation of
acids during storage. Acidic gas can damage the fuel
system of an engine while in storage. To avoid engine
problems, the fuel system should be emptied before stor-
age of 30 days or longer. Drain the gas tank, start the
engine and tat it run until the fuel lines and carburetor are
empty. Use fresh fuel next season. See Storage lnstruc_
tions for additional information. Never use engine or
carburetor cleaner products in the fuel tank or permanent
damage may occur.
CAUTION: Fill to bottom of gas tank
filler neck. Do not overfill. Wipe off any
spilled oi! or fuel. Do not store, spill or
use gasoline near an open flame.
TO START ENGUNE (See Fig. 6)
When starting engine for the first time or if engine has run
out of fuel, it will take extra cranking time to move fuel from
the tank to the engine.
Depress clutch/brake pedal and set parking brake.
Place gearshift lever in neutral (N) position.
Move attachment clutch to "DISENGAGED" position.
Pull choke control out to choke (t_..I) position for cotd
engine start. For warm engine start do not use choke
control.
Move throttle control to midway between fast ("_) and
slow (,_) positions.
o Insert key into ignition and turn key clockwiseto"START"
position and release key as soon as engine starts. Do
not run starter continuously for more than fifteen
seconds per minute. If engine does not start after
several attempts, move throttle control to fast (,_)
position, wait a few minutes and try again.
, When engine starts, slowly push choke control in,
f/love throttle control to fast (,_) position.
o Allow engine to warm up for a few minutes before
engaging drive or attachments.
NOTE: If at a high altitude (above 3000 feet) or in cold
temperatures (below 32°F), the carburetor fuel mixture
may need to be adjusted for best engine performance. See
"TO ADJUST CARBURETOR" in the Service and Adjust-
ments section of this manual.
MOWING TIPS
o Tire chains cannot be used when the mower housing is
attached to tractor.
Mower should be properly leveled for best mowing
performance. See "TO LEVEL MOWER HOUSING" in
the Service and Adjustments section of this manual.
Use the runner on the right hand side of mower as a
guide. The blade cuts approximately an inch outside
the runner (See Fig. 8).
The left hand side of mower should be used for trim-
ruing.
Drive so that clippings are discharged onto the area
that has been cut. Have the cut area to the right of the
machine. This will result in a more even distribution of
clippings and more uniform cutting.
- When mowing large areas, start by turning to the right
so that clippings will discharge away from shrubs,
fences, driveways, etc. After one or two rounds, mow
in the opposite direction making left hand turns until
finished (See Fig. 10).
o If grass is extremely tall, it should be mowed twice to
reduce load and possible fire hazard from dried clip-
pings. Make first cut relatively high; the second to the
desired height.
- Do not mow grass when it is wet. Wet grass wil! plug
mower and leave undesirable clumps. Allow grass to
dry before mowing.
Always operate eng,ine at full throttle when mowing to
assure better mowing performance and proper dis-
charge of material. Regulate ground speed by select-
ing a low enough gear to give the mower cutting
performance as well as the quality of cut desired,
• When operating attachments, select a ground speed
that will suit the terrain and give best performance of
the attachment being used.
f
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FIG. 10
15