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REPLACE SPARK PLUG (Fig. 32)
The spark plugshould be replaced each year to ensure the
engine starts easier and runs better.
Spark Plug gap should be o025"o
• Loosen 3 screws on cylinder cover.
- Remove cylinder cover
o Twist, then pull off the spark plug boot,,
o Remove spark plug from cylinder and discard_
= Replace with correct spark plug and tighten with 3/4"
socket wrench (10-12 Ib4t)
• Reinstall spark plug boot,,
,, Reinsta!! CYlindercover and 3 screws (15-20 in-lb).
Screws
Plug Boot-_--._ /r--_/'_ .___Cv.tinder
Spark
Figure 32
INSPECT MUFFLER AND
SPARK ARRESTOR SCREEN (IF INSTALLED)
(Fig. 33)
As the unit is used, carbon deposits build up on the muffler
and spark arrestor screen (if installed), and must be re-
moved to avoid creating a fire hazard or affecting engine
performance.
Required cleaning is every 25 hours of operation or annu-
ally, whichever is less,
Replace the spark arrestor screen if breaks occur.
CLEANING THE SPARK ARRESTOR SCREEN
• Loosen and remove the 2 muffler cover screws.
° Remove the muffler cover (cover snaps into muffler
body)
. Remove muffler diffuser and spark arrestor screen as-
sembly_ Notice the orientationof these parts for reas-
semblyo
• Clean the spark arrestor screen with a wire brush or re-
place if breaks are found in the screen.
, Replace any broken or cracked parts°
= Reinstall diffuser and spark arrestor screen assembly
with round holes facing up and towards muffler cover
• Reinstall muffler cover and 2 screws (7-8 ft-lbs),
..Muffler Diffuser/
Spark Arrestor
Screen
Muffler
Cover
Screws
M
Body
Cover
Figure 33
REPLACE FUEL FILTER (Fig. 34, 35 & 36)
Thefuelfiltershoutd be reptaced aftereach season Never
operate your saw without a rue! filter, Be careful not to
damage fuel Iine while removing the fuel filter,
• Run fuel tank dry of fuel before replacing fuel fifter
o Move on/stop switch to the "STOP" position.
o Remove the fuelcap,
• Pull out fuet cap retainer using a small patr of pliers
, Bend a piece of wire,
° Insert the bent wire into the fuel tank and hook the fuel
line. Carefully pufl out the fuel line and grab either the
fuel filter or the fuel line with your fingers°
• Remove fuel filter from the tank.
, Remove fuel filter from the fuel iineo
• Either clean the fuel filter or replace itwith a new one°
To clean, submerge in warm soapy water for 10 min-
utesoA very Iight dish washing liquid is recommended_
Agitate fuel filter until it is clean,_ Rinse thoroughly in
warm water and air dry.
• Reverse process for installation.
Pliers
Fuet Cap
Fuel Mix!
Fitf Cap
Figure 34
F
Figure 35
Fuel Line
Fuel Filter
Fuel Filter j
Filter Neck / "-_2j. 2'
Figure 36
-19-
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