135-hour Maintnenace
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 components 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. |
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.
7.Gently tap the muffler on a wood surface to dislodge any loose carbon.
8.Inspect the cylinder exhaust port for carbon buildup.
IMPORTANT!
If you note excessive carbon buildup, consult your servicing dealer.
9.Reassemble the muffler in the reverse order of disassembly.
Assembly |
|
Driveshaft/Powerhead |
|
Clamp Screw | Spark |
Main | Plug |
| |
Shaft |
|
Outer Tube |
|
Grip |
|
Ignition |
|
Switch |
|
Tube |
|
Clamp |
|
Throttle Lever |
|
Figure 5 |
|
Connect the Outer Tube to the Powerhead.
ASSEMBLY
4. Remove the two 5 mm muffler |
screws. Remove the lower muffler |
screw, then lift the muffler assem- |
bly from the engine. |
1.Place the powerhead on a clean, flat surface, spark plug facing up.
See Figure 5.
Tube Clamp
4. Slide the outer tube into the tube |
clamp until the tube bottoms. If |
installation is difficult, rotate the |
outer tube or gearcase shaft |
slightly until you feel the mainshaft |
Rear Muffler | Spark | Forward |
Shield | Muffler | |
| Arrester | Shield |
| Screen |
|
MAINTENANCE |
| 5 mm Muffler |
| Screws | |
|
| |
Rear Muffler |
| Lower Muffler |
Shield Bolt | Catalyst Muffler | Screw |
Figure 35 |
|
|
26 |
|
|
splines engage with the powerhead. |
See Figure 5. |
5. Position the outer tube so that the |
ignition switch is facing up and the |
Hex
Wrench
Figure 6
Shim Washer
throttle lever is facing down. See |
Figure 5. |
6. Slide the outer tube into the |
powerhead until the throttle grip |
just contacts the tube clamp. |
2.Use the 4 mm hex wrench to loosen the tube clamp screw. Verify that the
CAUTION!
Do not remove the
3.Add some
7. Tighten the clamp screw firmly. |
CAUTION!
Do not force the shaft tube into the powerhead! Excessive force can damage the shaft tube and mainshaft.
11