POWXG1022
EN
Copyright © 2016 VARO
P a g e
|
18
www.varo.com
11.5
Spark arrester screen
Note: a clogged spark arrester screen will dramatically reduce engine
performance.
Remove the 2 bolts (A) and pull muffler out (Fig. 17a).
Remove the 2 screws that holds the cover (B) (Fig. 17b).
Discard the used spark arrester screen (D) and replace it with a new one.
Reassemble the muffler components and install the muffler to the cylinder. Tighten
securely.
11.6
Spark plug
Note: for efficient operation of saw engine, spark plug must be kept clean
and properly gapped.
Push stop switch down.
Remove knob (A) holding air filter cover in place, remove the top cover (B) by loosening
the cover retaining screw. Cover will lift off (Fig. 18a).
Disconnect the wire connector (C) from the spark plug (D) by pulling and twisting at the
same time (Fig. 18b).
Remove spark plug with spark plug socket wrench.
DO NOT USE ANY OTHER TOOL
Check electrode
gaps with wire feeler gauge and set gaps to .025” (.635mm) if necessary.
Reinstall a new spark plug.
Note: a resistor spark plug must be used for replacement.
Note: this spark ignition system meets all requirements of the interference-
causing equipment regulations.
11.7
Carburetor adjustment
The carburetor was pre-set at the factory for optimum performance.
If further adjustments are necessary, please take your unit to the nearest qualified service
technician.
12 MAINTENANCE
12.1
Guide bar maintenance
Frequent lubrication of the guide bar (railed bar which supports and carries the saw chain)
sprocket tip is required. Proper maintenance of the guide bar, as explained in this section, is
essential to keep your saw in good working condition.
1.
Dismount the Saw Chain (1) and Guide Bar (2) by following the instructions in
‘Assembling the chainsaw’ in reverse
2.
Remove saw dust from the bar groove and oiling port using a small screwdriver, probe
(not included) (see Fig. 19), or compressed air
3.
Inspect the Guide Bar and the sprocket on its tip. Lubricate the sprocket with a suitable
maintenance spray
4.
Deburr, turn over or replace the Guide Bar as required
