Replacing The Spark Plug; Transporting; Cleaning; Storage - Craftsman Incredi-Pull 316.791880 Operator's Manual

2. ReHeasethe throttHe trigger and Herthe engine idHe.If
the engine stops, insert a small phillips or flat Made
screwdriver into the hod in the air fiHterimuffler cover
(Fig. 18). Turn the idHespeed screw in, clockwise,
1/8 of a turn at a time (as needed) unti[ the engine
idHes smootMy.
3. If the engine appears to be idHingtoo fast, turn the
idHespeed screw counterclockwise 1/8 of a turn at
a time (as needed), to reduce idHespeed.
Checking the fue[ mixture, cHeaning the air fiHter, and
adjusting the idHespeed shouHd soHvemost engine
proMems. If not and all of the following are true:
• the engine will not idle
• the engine hesitates or stalls on acceleration
• there is a loss of engine power
Have the carburetor adjusted by a Sears or other qualified
service dealer. Call 1-800-4-MY-HOME @for more
information..
REPLACING THE SPARK PLUG
Use a Champion RDJ7Y spark plug, or equivalent. The
correct air gap is 0.020 inch (0.5 ram}. Remove the plug
after every 25 hours of operation and check its condition.
1. Stop the engine and allow it to cool. Grasp the plug
wire firmly and pull it from the spark plug.
2. Clean around the spark plug. Remove the spark plug
from the cylinder head by turning a 5/8-inch socket
counterclockwise.
3. Replace a cracked, fouled or dirty spark plug. Set the air
gap at 0.020 in. (0.5 mm} using a feeler gauge (Fig+19)+
WARNING:
Do not sand blast,
scrape or clean
electrodes. Grit in the engine could damage
the cylinder.
4. Install a correctly-gapped spark plug in the cylinder
head. Tighten by turning the 5/8-inch socket
clockwise until snug.
If using a torque wrench torque to 110-120 in.+ib. (12.3-
13.5 N+m}o Do not over tighten.
Spark
Plug
0.020 in.
(0.5 mm}
+
t
Fig. 19
TRANSPORTING
Allow the engine to cool before transporting.
Drain fuel from unit.
• Tighten fuel cap before transporting.
Secure the unit while transporting.
CLEANING
WARNING:
To avo+d ser+ous
personal injury,
alwaysturn yourtrimmeroff and allow it tocool
before you clean or maintain it.
Use a small brush to dean off the outside of the unit.
Do not use strong detergents. Household cleaners that
contain aromatic oils such as pine and lemon, and
solvents such as kerosene, can damage plastic housing
or handle. Wipe off any moisture with a soft cloth.
STORAGE
• Never store a fueled unit where fumes may reach an
open flame or spark.
• Allow the engine to cool before storing.
• Store the unit locked up to prevent unauthorized use
or damage.
• Store the unit in a dry, weDventilated area.
• Store the unit out of the reach of children.
LONG TERM STORAGE
If you plan on storing the unit for an extended time, use
the following storage procedure:
1. Carefully drain the fuel tank by running the unit dry or
remove fuel cap and tip the motor housing over and
drain oiFgas fuel into a container with the same 2-
cycle fuel mixture. Do not use fuel that has been
stored for more than 60 days+
CAUTION"
Dispose of the old
• fuel/oil mixture in
accordance with all Federal, State, and Local
regulations.
2. Start the engine and allow it to run until it stalls. This
ensures that all fuel has been drained from the carburetor.
3. Allow the engine to coo[. Remove the spark plug and
put 1 oz. (30 ml) of any high quality motor oil or
2-cycle oil into the cylinder. Pull the starter rope
slowly to distribute the oil. Reinstall the spark plug.
NOTE: Remove the spark plug and drain all of the oil
from the cylinder before attempting to start the
trimmer after storage.
. Dispose of the old oil
• in accordance with a[[
Federal State, and Local regulations.
15
4.
ThorougHy dean the unit and inspect it for any
loose or damaged parts. Repair or replace
damaged parts and tighten loose screws, nuts or
bolts. The unit is ready for storage.