MAINTENANCE AND REPAIR INSTRUCTIONS

3.Replace cracked, fouled or dirty spark plug. Set the air gap at 0.025 in. (0.635 mm.) using a feeler gauge (Fig. 38).

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:

110-120 in.•lb. (12.3-13.5 N•m) Do not over tighten.

SPARK ARRESTOR MAINTENANCE

0.025 in.

(0.635 mm.)

1.Remove the muffler cover. See Rocker Arm Clearance.

 

 

TROUBLESHOOTING

 

 

 

 

 

 

 

 

.ENGINE LACKS POWER OR STALLS WHEN CUTTING

 

 

CAUSE

 

 

ACTION

 

 

 

 

 

 

 

 

Old fuel

 

 

Drain gas tank and add fresh fuel

 

 

 

 

 

Adjust according to the Carburetor Adjustments

 

 

Improper carburetor adjustment

 

 

section or take to an authorized service dealer

 

 

 

 

 

for an adjustment

 

 

 

 

 

 

 

 

Fouled spark plug

 

 

Replace or clean the spark plug

 

 

 

 

 

 

 

2.With a flat blade screwdriver or Torx T-20 bit and a T-25 bit, remove the screws attaching the spark arrestor diverter to the muffler (Fig. 39).

3.Pull the tab on the spark arrestor cover out of the muffler. Remove the spark arrestor cover.

4.Remove the spark arrestor screen from the spark arrestor cover.

5.Clean the spark arrestor screen with a wire brush or replace it.

6.Reinstall the spark arrestor screen, spark arrestor cover and screw.

 

Fig. 38

Muffler

Spark Arrestor

 

 

Screen

 

Diverter

T-25

Screw

Slot

T-20 Screw

 

Plugged spark arrestor

Clean or replace spark arrestor

If further assistance is required, contact your authorized service dealer.

SPECIFICATIONS

ENGINE*

Engine Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Air-Cooled, 4-Cycle Displacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.6 cu. in. (26.2 cc) Clutch Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Centrifugal Operating RPM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6,800 - 9,300 rpm

CLEANING

Fig. 39

WARNING: To avoid serious personal injury, always turn the 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.

•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.Drain all gasoline from the gas tank into a container. Do not use gas that has been stored for more than 60 days. Dispose of the old gasoline in accordance to Federal, State, and Local regulations.

2.Start the engine and allow it to run until it stalls. This ensures that all gasoline 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.Change the oil, referring to Changing the Oil. Dispose of the old oil in accordance to Federal, State and Local regulations.

5.Thoroughly clean the unit and inspect for any loose or damaged parts. Repair or replace damaged parts and tighten loose screws, nuts or bolts. The unit is ready for storage.

TRANSPORTING

•Allow the engine to cool before transporting.

•Secure the unit while transporting.

•Drain the gas tank before transporting.

•Tighten gas cap before transporting.

TROUBLESHOOTING

ENGINE WILL NOT START

Idle Speed RPM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2,800 - 3,600 rpm Ignition Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Electronic Ignition Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Rocker Switch 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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Unleaded Carburetor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Diaphragm, All-Position Starter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Auto Rewind Muffler. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Baffled with Guard Throttle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Manual Spring Return Fuel Tank Capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 oz (532 ml)

DRIVE SHAFT AND CUTTING ATTACHMENT*

Drive Shaft Housing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Steel Tube (Rapid-Link™) Throttle Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Finger-Tip Trigger Approximate Unit Weight (No fuel, with handle, shield and cutting attachment):

CC4125 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11.7 lbs (6 kg) CC4175 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14.5 lbs (6.5 kg)

Cutting Mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Fixed Line Cutting Head Line Spool Diameter: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 inches (76.2 mm) Trimming Line Diameter: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.105 inches (2.67 mm) Cutting Path Diameter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 in. (43.18 cm.)

*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.

CAUSE

Empty fuel tank

Primer bulb wasn't pressed enough

Old fuel

Fouled spark plug

Plugged spark arrestor

When it is above 40°F outside & the Cold Weather Start Lever is in the CLOSED / START position

When it is below 40°F outside & the Cold Weather Start Lever is in the RUN / OPEN position

ACTION

Fill fuel tank with fuel

Press primer bulb fully and slowly 10 times

Drain gas tank and add fresh fuel

Replace or clean the spark plug

Clean or replace spark arrestor

Flip the Cold Weather Start Lever to RUN /

OPEN

Flip the Cold Weather Start Lever to CLOSED / START and follow the Starting Instructions

 

ENGINE WILL NOT IDLE

 

 

 

CAUSE

ACTION

 

 

 

 

 

 

Air filter is plugged

Replace or clean the air filter

 

 

Old fuel

Drain gas tank and add fresh fuel

 

 

 

 

 

 

Improper carburetor adjustment

Adjust according to the Carburetor Adjustments

 

 

section or take to an authorized service dealer

 

 

 

for an adjustment

 

 

 

 

 

 

ENGINE WILL NOT ACCELERATE

 

 

 

CAUSE

ACTION

 

 

 

 

 

 

Old fuel

Drain gas tank and add fresh fuel

 

 

 

Adjust according to the Carburetor Adjustments

 

 

Improper carburetor adjustment

section or take to an authorized service dealer

 

 

 

for an adjustment

 

 

 

 

 

 

Cutting attachment bound with grass

Stop the engine and clean the cutting attachment

 

 

Dirty air filter

Clean or replace the air filter

 

 

 

 

 

 

Plugged spark arrestor

Clean or replace spark arrestor

 

 

 

 

 

7