MAINTENANCE AND REPAIR INSTRUCTIONS
CLEANING THE UNIT
REPLACING THE SPARK PLUG
Use a replacement Champion RDZ19H spark plug. The correct
air gap is 0.025 in. (0.635 mm.). Remove the plug after every
WARNING:
To avoid serious personal injury,
always turn the unit off and allow it to cool before
you clean or perform any maintenance on it.
25
hours of operation and check its condition.
1.
Stop the engine and allow it to cool. Grasp the plug wire
firmly and pull the cap from the spark plug.
Clean dirt from around the spark plug. Remove the spark
plug from the cylinder head by turning it counterclockwise
with a 5/8” socket.
•
•
Use a small brush to clean off the outside of the unit and
to keep the air vents free of obstructions.
Do not use strong detergents or petroleum based cleaners,
such as kerosene. Some household cleaners contain aromatic
oils such as pine and lemon that can damage the plastic
housings or handles. Wipe off any moisture with a soft cloth.
2.
3.
WARNING: Do not sand blast, scrape or clean
electrodes. Grit in the engine could damage the
cylinder.
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 in a locked up area to prevent
unauthorized use or damage.
Replace cracked, fouled or dirty spark plug. Set the air gap at
0.025 in. (0.635 mm.) using a feeler gauge (Fig. 28).
•
•
•
Store the unit in a dry, well-ventilated area. Do not store
next to corrosive material like fertilizer.
•
Store the unit out of the reach of children.
LONG-TERM STORAGE
If the unit will be stored for an extended time:
0.025
in.
mm)
(0.635
1.
Carefully drain all gasoline from the fuel tank by removing the
fuel cap and tipping the motor housing over to allow the fuel to
drain into an approved gas container. Do not use gas that has
been stored for more than 60 days. Dispose of the old gasoline
in accordance with Federal, State and Local regulations.
Fig. 28
2.
3.
Start the engine and allow it to run until it stalls. This ensures
that all gasoline has been drained from the carburetor.
4.
Install a correctly-gapped spark plug in the cylinder head.
Turn the 5/8 in. socket clockwise until snug.
If using a torque wrench torque to:
10-120 in.•lb. (12.3-13.5 N•m)
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.
1
Do not over tighten.
NOTE: Remove the spark plug and drain all of the oil from the
cylinder before attempting to start the unit after storage.
4.
5.
6.
Change the oil, referring to the Changing the Oil section.
Dispose of the old oil in accordance with Federal, State
and Local regulations.
Thoroughly clean the unit and inspect for any loose or
damaged parts. Repair or replace damaged parts and
tighten loose screws, nuts or bolts.
SPARK ARRESTOR MAINTENANCE
Remove the muffler cover. See Rocker Arm Clearance.
With a flat blade screwdriver or Torx T-20 bit, remove the screw
attaching the spark arrestor cover to the muffler (Fig. 29).
1.
2.
To take up less storage area, loosen the handlebar knobs
and fold the handlebar down. The unit is ready for storage.
Muffler
Spark Arrestor Screen
TRANSPORTING
•
•
•
•
Allow the engine to cool before transporting.
Secure the unit while transporting.
Drain the fuel tank before transporting.
Tighten fuel cap before transporting.
Tab
Spark Arrestor Cover
Screw
Slot
Fig. 29
3.
4.
Pull the tab on the spark arrestor cover out of the muffler.
Remove the spark arrestor cover.
Remove the spark arrestor screen from the spark arrestor
cover.
5.
6.
Clean the spark arrestor screen with a wire brush or replace it.
Reinstall the spark arrestor screen, spark arrestor cover
and screw.
14
| Categories | Lawn Mower Manual, MTD Lawn Mower Manuals, Troy-Bilt Lawn Mower Manuals |
|---|---|
| Tags | MTD TB144, Troy-Bilt TB144 |
| Download File |
|
| Document Type | Owner's Manual |
| Language | English |
| Product Brand | MTD, Lawn Mower |
| Product Type | Walk Behind Mower |
| Document File Type | |
| Publisher | mtdproducts.com |
| Wikipedia's Page | MTD Products |
| Copyright | Attribution Non-commercial |
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