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Replace the spark arresting screen if
breaks occur.
Spark Exhaust
Arresting Outlet
Screen Cover
z
Nut
Muffler
CLEANING THE SPARK ARREST-
ING SCREEN
Cleaning is required every 25 hours of
operation or annually, whichever
comes first.
1. Loosen and remove the nut from
the exhaust outlet cover.
2. Remove the exhaust oulet cover.
3. Remove spark arresting screen.
Handle screen carefuIty to prevent
damage.
4. Clean the spark arresting screen
gently with a wire brush. Replace
screen if breaks are found.
5. Replace any broken or cracked
muffler parts,
6. Reinstall spark arresting screen, ex-
haust outlet cover, and nut. Tighten
nut securely.
REPLACE SPARK PLUG
The spark plug should be replaced
each year to ensure the engine starts
easier and runs better. Ignition timing
is fixed and nonadjustable.
1. Loosen 3 screws on cylinder cover.
2. Remove the cylinder cover.
3. Pull offthe spark plug boot.
4. Remove spark plug from cylinder
and discard.
5. Replace with Champion RCJ-7Y
spark plug and tighten securely
with a 3/4 inch (19 mm) socket
wrench, Spark plug gap should be
0,025 inch (0,6 mm),
6, Reinstall the spark plug boot.
7, Reinstall the cylinder cover and 3
screws. Tighten securely,
Cy}inder
Cover
Spark
Plug Boot
Spark
Plug
REPLACE FUEL FILTER
To replace fuel filter, drain your unit by
running it dry of fuel. Remove fuel cap
and its connected retainer from tank.
Puit filter from tank and remove from
line. Replace and reassemble.
,_b,WARNING: Disconnect the
spark plug before performing mainte-
nance, service, or adjustments except
for carburetor adjustments.
CHAIN SHARPENING
_I_WARNING: Improper chain
sharpening techniques and/or depth
gauge maintenance will increase the
chance of kickback which can result in
serious injury.
_ WARNING: Wear protective
gloves when handling chain. The chain
is sharp and can cut you even when it is
not moving.
Conditions which indicate the need for
chain sharpening:
• Reduction in size of wood chips, The
size of the wood chip wilt decrease
as the chain gets duller until it be-
comes more like a powder than a
chip. Note that dead or rotted wood
will not produce a good chip.
• Saw cuts to one side or at an angle,
• Saw has to be forced through the cut.
Tool8 required:
• 5/32 inch (4 mm) diameter round file
and file holder
• Flat file
• Depth gauge tool
TO SHARPEN CHAIN:
1. Move ON/STOP switch to the STOP
position.
2. Check chain for proper tension.
Adjust chain tension if necessary.
See CHAIN TENSION section.
17