Replacing The Spark Plug; Cleaning And Storage - Cub Cadet ST2020 Manual Del Operador

MAINTENANCE AND REPAIR INSTRUCTIONS

REPLACING THE SPARK PLUG

Use a #791-610311B spark plug, a Champion
equivalent. The correct air gap is 0.025 inch (0.635 mm).
1. Stop the engine and allow it to cool. Grasp the plug wire firmly and pull
the boot from the spark plug.
2. Clean around the spark plug. Remove the spark plug from the cylinder
head by turning a 5/8 in. socket counterclockwise.
WARNING:
Do not sand blast, scrape or clean electrodes.
Grit in the engine could damage the cylinder.
3. Replace a cracked, fouled or dirty spark plug. Set the air gap at 0.025 in.
(0.635 mm) using a feeler gauge (Fig. 27).
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.•lb. (12.3-13.5 N•m)
Do not over tighten.
®
ref. # RDJ7Y spark plug, or
0.025 in.
(0.635 mm)
Fig. 27

CLEANING AND STORAGE

CLEANING
WARNING:
To avoid serious personal injury, always turn
your unit off and allow it to cool before you clean or service it.
Use a small brush to clean 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 the unit with fuel in the tank 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, well-ventilated area.
• Store the unit out of the reach of children.
Short Term Storage (1-2 weeks)
1. Store the unit in a horizontal position. If this is not possible, store the unit
vertically with the engine at the top.
Long Term Storage
If the unit will be stored for an extended time, use the following storage
procedure:
1. Drain all fuel from the fuel tank into a container with the same 2-cycle fuel
mixture. Do not use fuel that has been stored for more than 30 days. Dispose
of the old fuel/oil mix in accordance with 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 cool. Remove the spark plug and put 5 drops of high
quality motor 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.
4. Thoroughly clean 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.
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