Maintenance (continued)
Muffler maintenance
Every 135 hours of operation, remove and clean the muffler.
WARNING!
Never operate the unit with a damaged or missing muffler or spark arrester! Operating with missing or damaged exhaust com- ponents is a fire hazard and could also damage your hearing.
1.Remove the spark plug boot.
2.Loosen 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 bolt and, while noting the orientation of parts, separate the muffler shield.
6.Remove the spark arrester screen and clean with a stiff bristle brush.
| Engine cover |
| screws |
| Spark arrester |
Rear muffler shield | screen |
| |
| Forward |
| muffler shield |
| 5 mm muffler |
| screws |
Rear muffler |
|
shield bolt | Lower muffler screw |
| Muffler |
7. | Gently tap the muffler on a wood sur- | 9. Reassemble the muffler in the reverse |
| face to dislodge any loose carbon. | order of disassembly. |
|
|
|
8. | Inspect the cylinder exhaust port for | IMPORTANT! |
| carbon buildup. | If you note excessive carbon buildup, con- |
|
|
sult your servicing dealer.
Long Term Storage
Whenever the unit will not be used for 30 days or longer, use the following
procedures 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 10 cm3 (.25 oz.) of
■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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