8
MAI
NTENANCE
I NSTRUCTIONS
I
Figure &5C
2.
Pull
off with a twisting motion.
(Figure
8-5C)
3. Replace fuelfilter.
NOTE:
Neveroperate the trimmerwithoutthe
filter. Internal engine damage could result !
CARBURETOR ADJUSTMENT
The carburetor was
pre-set
at the factory for optimum
performance.
lf further adjustments are necessary,
please
take
your
unit to the nearest McOulloch Author-
ized Service Center listed in the Yellow Pages.
8-7. SPARK PLUG
CENTER
ELECTRODE
SIDE
ELECTRODE
Figure
8-7B
4. Adjust
gap
to
.025 in. Bend
side electrode
only using
a
gapping
tool.
(Figure
8-78)
5.
Reinstall
spark
plug
and torque
to 105 to
130 inch
pounds.
Reconnect
spark
plug
boot.
8€.
SPARK
ARRESTER
SCREEN
NOTE:
lt is
not necessary
to take muffler
shield off to
replace
or install
a new spark
arrester
screen.
@
8-6.
fuel
SPARK PLUG
BOOT
Figure 8-7A
1 . Remove spark
plug
boot with
a
twist and
pull
motion.
(Figure
8-7A)
2. Remove the spark
plug.
3. Clean spark
plug
electrodes with
emery
cloth.
REMOVE
SCREW
Figure
8-8A
SCREEN
Flgure &88
1 ,
To replace spark
arrester
screen, remove
the retain-
ing screw
and screen
cover. Discard
old
screen.
Install
new screen.
(Figure
8-8A
& 8-88)
16
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