MAINTENANCE & REPAIR INSTRUCTIONS

MAINTENANCE SCHEDULE

Perform these required maintenance procedures at the frequency stated in the table. These procedures should also be a part of any seasonal tune-up.

NOTE: Some maintenance procedures may require special tools or skills. If you are unsure about these procedures take your unit to any non-road engine repair establishment, individual or authorized service dealer.

WARNING: To prevent serious injury, never perform maintenance or repairs with unit running. Always service and repair a cool unit. Disconnect the spark plug wire to ensure that the unit cannot start.

NOTE: Maintenance, replacement, or repair of the emission control devices and system may be performed by any non-road engine repair establishment, individual or authorized service dealer.

In order to assure peak performance of your engine, inspection of the engine exhaust port may be necessary after 50 hours of operation. If you notice lost RPM, poor performance or general lack of acceleration, this service may be required. If you feel your engine is in need of this inspection, refer service to any non-road engine repair establishment, individual or authorized service dealer for repair. DO NOT attempt to perform this process yourself as engine damage may result from contaminants involved in the cleaning process for the port.

FREQUENCY

MAINTENANCE REQUIRED

REFER

 

 

 

Before starting

Fill fuel tank with fresh fuel

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Every 10 hours

Clean and re-oil air filter

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Every 25 hours

Check and clean spark arrestor

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Check spark plug condition and gap

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Every 50 hours

Inspect exhaust port and spark arrestor screen for clogging or

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obstruction to assure maximum performance levels

 

 

 

 

 

 

 

 

WARNING: Never use metal-reinforced line, wire, chain, or rope. These can break off and become dangerous projectiles.

FIXED LINE INSTALLATION

Always use original equipment manufacturer 0.105 inch

(2.667 mm) replacement line. Lines other than those specified may make the engine overheat or fail.

To install the trimming line:

1. Insert each end of the replacement line into the holes on either side of retention hook (Fig. 18).

2.Push the ends through until they stick out of the sides of

the head (Fig. 19).

Fig. 18

 

3.Pull the ends through making sure that the ends are of equal

length and the middle of the line is centered between the

insertion holes (Fig. 20).

4. If the ends are not of equal length, push the longer end

back through the head part way and pull the shorter end to compensate. Repeat until both ends are the same length.

Fig. 20

5.Push the trimmer line until it

lies flat against the cutting head (Fig. 21). Make sure the two lengths of cutting line are of equal length. If they are not, adjust until they are.

Fig. 21

WARNING: Always use the correct line length when installing trimming line on the unit. If the two lengths of cutting line are not of equal length, the unit may develop a vibration.

Fig. 19

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