eplace if
9. Maintenance
WARNING
AIR FILTER
(1) Air filter
(1) Fuel filter
Every Every Every
25
50
100
System/components
Procedure
Before
hours hours hours Note
use
after after after
fuel leaks, fuel spillage
wipe out
fuel tank, air filter, fuel filte
r
inspect/clean
replace, if necessary
r
o
t
e
r
u
b
r
a
c
e
c
a
l
p
e
r
g
n
it
s
u
j
d
a
e
e
s
idle adjusting screw
idling speed (p. 22)
if necessary
)
m
m
7
.
0
~
6
.
0
(
n
i
5
2
0
.
:
P
A
G
t
s
u
j
d
a
e
r
d
n
a
n
a
e
l
c
spark plug
plug gap
replace, if necessary
cylinder fins, intake air cooling vent
clean
muf
fle
r, spark arrester, cylinder exhaust port clean
throttle trigger, stop switch
check operation
r
cutting parts
something’s wrong
transmission
grease
screws/nuts/bolts
tighten/replace
not adjusting screws
cutting attachment guard
make sure to attach
oiling port
clean
guide bar
clean
sprocket
inspect/replace
saw chain
inspect/sharp
E
NI
G
NE
TF
A
HS
TIN
U G
NITT
UC
16
Make sure that the engine has stopped and is cool
before performing any service to the machine. Con-
tact with moving parts or hot exhaust may result in
personal injury.
The air filter, if clogged, will reduce engine perfor
-
mance. Check and clean the filter element in warm,
soapy water as required. Dry completely before install-
ing. If the element is damaged or has shrunk, replace
with a new one.
FUEL FILTER
When the engine runs short of fuel supply, check the
fuel cap and fuel filter for any blockages.
placement plug, use the correct type.
SPARK PLUG
•
Starting failure and
misfiring
are often caused by a
fouled spark plug. Clean the spark plug and check
that the plug gap is in the correct range. For a re-
IMPORTANT
•
Note that using any spark plug other than those des-
ignated may result in the engine failing to operate prop-
erly or in the engine becoming overheated and dam-
aged.
•
To install the spark plug, first turn the plug until it is
finger tight, then tighten it a quarter turn more with a
socket wrench.
0.6
~
0.9mm
EXHAUST
WARNING
Inspect periodically the exhaust for loose fasteners,
any damage or corrosion. If any sign of exhaust
leakage is found, stop using the machine and have
it repaired immediately. Note that failing to do so
may result in the engine catching on fire.
