MAINTENANCE AND REPAIR INSTRUCTIONS
NOTE: Some maintenance procedures may require special tools or skills. If you are unsure about these procedures take your unit to an authorized service dealer.
MAINTENANCE SCHEDULE
These required maintenance procedures should be performed at the frequency stated in the table. They should also be included as part of any seasonal
WARNING: To prevent serious injury, never do maintenance or repairs with unit running. Always do maintenance and repairs on a cool unit. Disconnect spark plug wire to ensure the unit will not start.
FREQUENCY | MAINTENANCE REQUIRED | REFER TO: | |
Before Starting Engine | Fill fuel tank with fresh fuel | Page 13 | |
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| Check oil | Page 20 |
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Every 10 Hours | Clean and | Page 21 | |
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1st Change at 10 Hours | Change oil | Page 20 | |
Every 25 | Hours there after | Change oil | Page 20 |
Every 25 | Hours | Clean Spark Arrestor | Page 24 |
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10 hours on new engine | Check rocker arm to valve clearance and adjust as required | Page | |
Every 50 | Hours | Check rocker arm to valve clearance and adjust as required | Page |
Every 50 | Hours | Check spark plug condition and gap | Page 24 |
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LINE INSTALLATION
Always use genuine Ryobi 0.095 in. (2.41 mm.) replacement line. Larger line may make the engine overheat or fail.
WARNING: Never use
There are two methods to replace the trimming line.
•Wind the inner reel with new line
•Install a prewound inner reel
Winding the Existing Inner Reel
1.Hold the outer spool with one hand and unscrew the Bump Knob™clockwise (Fig. 32). Inspect the bolt inside the Bump Knob to make sure it moves freely. Replace the Bump Knob if damaged.
2.Remove the inner reel from the outer spool (Fig. 32).
3.Remove spring from the inner reel (Fig. 32).
4.Use a clean cloth to clean the the inner reel, spring, shaft, and inner surface of the outer spool (Fig. 33).
5.Check the indexing teeth on the inner reel and outer spool for wear (Fig. 34). If necessary, remove burrs or replace the reel and spool.
Fig. 33
Indexing Teeth
Outer Spool 
Spring 
Inner Reel 
Bolt
Fig. 34
Bump Knob™ 
Fig. 32
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