Cleaning And Storage; Optional Accessory; Troubleshooting; Specifications - Troy-Bilt TB146 Operator's Manual

MAINTAINING THE SPARK PLUG
1. Stop the engine and allow it to cool.
2. Remove the 6 screws from the engine cover with a flat-head screwdriver or T-25 Torx screwdriver
(Fig. 19). Remove the engine cover.
3. Grasp the spark plug boot firmly and pull it from the spark plug.
4. Clean around the spark plug. Remove the spark plug from the cylinder head with a 5/8-inch
socket, turning counterclockwise.
WARNING:
Do not sand blast, scrape or clean spark plug electrodes. Grit in the engine
could damage the cylinder.
5. Inspect the spark plug. If the spark plug is cracked, fouled or dirty, replace it with a replacement
part #753-05784, a Champion RDZ4H or an equivalent spark plug.
6. Use a feeler gauge to set the air gap at 0.025 in. (0.635 mm)
(Fig. 23).
7. Install the spark plug in the cylinder head. Tighten the spark
plug with a 5/8-inch socket, turning it clockwise until snug.
NOTE: If using a torque wrench, torque to:
110-120 in.•lb. (12.3-13.5 N•m). Do not over tighten.
8. Reattach the spark plug boot.
9. Reinstall the engine cover. Check the alignment of the engine
cover before tightening the screws. Tighten the screws.

CLEANING AND STORAGE

CLEANING
WARNING:
To avoid serious personal injury, always stop the engine and allow it to cool
before cleaning or maintaining the unit.
Use a small brush to clean 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. 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.
• Lock up the unit to prevent unauthorized use or damage.
• Store the unit in a dry, well-ventilated area.
• Store the unit out of the reach of children.
Long-term Storage
1. Remove the fuel cap, tip the unit and drain the fuel into an approved container.
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 any high quality motor oil into
the cylinder. Pull the starter rope slowly to distribute the oil. Reinstall the spark plug.
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.
Preparing the Unit for Use after Long-term Storage
1. Remove the spark plug and drain all of the oil from the cylinder.
2. Change the oil. Refer to Changing the Oil.
NOTE: Do not use fuel that has been stored for more than 30 days. Dispose of old fuel and oil
according to federal, state and local regulations.

OPTIONAL ACCESSORY

ELECTRIC STARTER AND POWER START BIT™ FEATURES
This unit is designed to be started with an optional electric starter or
Power Start Bit™ that are sold separately. If choosing to start the unit
using one of these features or have questions please contact your
local retailer or call 1-800-828-5500 U.S, (1-800-668-1238 Canada),
for more information and purchasing. You may also go to
www.troybilt.com or www.troybilt.ca.
6
MAINTENANCE
0.025 in.
(0.635 mm)
Fig. 23
Electric Start Feature
Fig. 24

TROUBLESHOOTING

PROBLEM
THE ENGINE WILL NOT START, IDLE OR ACCELERATE
The fuel tank is empty
The primer bulb was not pressed enough
The fuel is old (over 30 days)
The spark plug is fouled
The air filter is dirty
The idle speed is incorrect
THE ENGINE LACKS POWER OR STALLS WHEN CUTTING
The fuel is old (over 30 days)
The spark plug is fouled
IF FURTHER ASSISTANCE IS REQUIRED, CONTACT AN AUTHORIZED SERVICE DEALER.

SPECIFICATIONS*

Engine Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Air-Cooled, 4-Cycle
Displacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.8 cu. in. (29 cc)
Operating RPM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6,800+ rpm
Idle Speed RPM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2,800 - 3,600 rpm
Valve clearance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.003–0.006 in. (0.076–0.152 mm)
Spark Plug Gap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.025 inch (0.635 mm)
Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SAE 30 Oil
Crankcase Oil Capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.04 oz (90 ml)
Fuel Tank Capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 oz (414 ml)
Cultivating Path Width (Maximum). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 inches (30.48 cm)
Cultivating Depth (Maximum) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 inches (15.24 cm)
Approximate Weight (no fuel) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 lb. (11.5 kg)
*All specifications are based on the latest product information available at the time of printing. We
reserve the right to make changes at any time without notice.
SOLUTION
Fill the fuel tank with fresh fuel
Press the primer bulb 10 times or until fuel is visible
Drain the fuel tank and add fresh fuel
Replace the spark plug
Clean or replace the air filter
Adjust the idle speed
Drain the fuel tank and add fresh fuel
Replace the spark plug