135-Hour Maintenance
Every 135 hours of operation, remove
and clean the muffler.
WARNING!
Never operate the machine with a damaged or missing muffler or spark arrester! Operating with missing or damaged exhaust components is a fire hazard and could also damage your hearing.
1.Remove the spark plug boot.
2.Remove the two 4 mm engine cover screws (located at the top of the recoil housing).
3.Loosen the 5 mm engine top cover screw (the screw is captive) and lift the cover from the engine.
4.Remove the two 5 mm muffler screws. Remove the lower muffler screw, then lift the muffler assembly from the engine.
5.Remove the rear muffler shield socket head screw and, while noting the ori- entation of parts, separate the muffler shield. See Figure 30.
Rear Muffler | Spark |
| |
Shield | Forward | ||
Arrester | |||
| |||
| Muffler | ||
| Screen | ||
| Shield | ||
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5 mm Muffler
Screws
| Rear Muffler |
| Lower Muffler | |
| Muffler | Screw | ||
| Shield Screw | |||
Figure 30 |
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6. | Remove the spark arrester screen and |
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IMPORTANT! | ||||
| clean with a stiff bristle brush. | If you note excessive carbon buildup, con- | ||
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7. | Gently tap the muffler on a wood surface | sult with an authorized servicing dealer. | ||
| to dislodge any loose carbon. |
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| 9. Reassemble the muffler in the reverse | |||
8. | Inspect the cylinder exhaust port for | |||
order of disassembly. | ||||
| carbon buildup. |
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Long Term Storage
Whenever the unit will not be used for 30 days or longer, use the following proce- dures to prepare it for storage:
Clean external parts thoroughly and apply a light coating of oil to all metal surfaces.
Drain all the fuel from the fuel tank.
IMPORTANT!
All stored fuels should be stabilized with a fuel stabilizer such as
To remove the remaining fuel from the fuel lines and carburetor and with the fuel drained from the fuel tank.
1.Prime the primer bulb until no more fuel is passing through.
2.Start and run the engine until stops running.
3.Repeat steps 1 and 2 until the engine will no longer start.
CAUTION!
Gasoline stored in the carburetor for extended periods can cause hard start- ing, and could also lead to increased service and maintenance costs.
Remove the spark plug and pour about 1/4 ounce of
Slowly pull the recoil starter 2 or 3 times so oil will evenly coat the interior of the engine. Reinstall the spark plug.
Before storing the unit, repair or replace any worn or damaged parts.
Remove the air cleaner element from the carburetor and clean it thoroughly with soap and water. Let dry and reassemble the element.
Store the unit in a clean,
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