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FUELTANK and FILTER
LINE
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r,r/AsHER
(9) --FELT SLEEvE
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"oo,
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see if loosening the cap temporarily improves perfor-
mance. lf it does, replace vented cap: if it does not,
check for a clogged tuel filter, or for improper carbu-
retor adjustment. The FELT FILTER on the end ol the
llexible fuel line may be expected to last for many
monlhs withoul clogging. Under unusually dirty oper-
ating conditions or if water enters the fuel tank, how-
ever, inspecl the filter and change as necessary. To
remove the filler, remove the fuel cap and fish for the
llexible pick-up tube with a hook as shown in the sketch.
Gently pull the fuel pick-up out through the filler hole.
Pull the fuel pick-up body and sleeve olf the flexible fuel
line. Note flat washer between line and pick-up body.
Then pull the sleeve off the top end of the fuel pick-up
body. Clean the filter pick-up body, then slide a clean
filter sleeve onto the body. Assemble body and washer
to fuel line and drop them into the tank.
HOOK-OUT FUEL LINE
The fuel tank is vented through the fuel filler cap. lf pas-
sages to or from the valve become plugged, the valve
will not operate and the engine will not get enough fuel.
The inlet opening is located under the lip of the cap be-
low the aluminum plug on the edge of the cap. Whenever
the saw refuses to start, or starts and then loses power,
1 .
SPARK PLUG: The engine has a miniature, self-
seafing tapered seat type Champion #DJ-7J or AC
#CS45T. Always check to make sure that the con-
nector boot is firmly pressed on lhe spark plug.
Incorrect engine oil, incorrect fuel mixing, wrong
carburetor adjustments or excessive llooding of the
engine during Starting, will cause deposits to form on
the pluq electrodes. After manv hours of use thb pluq
.AP.O2'"=v,l
the plug electrodes. After many hours of use thb plug
may also require cleaning and regapping ol the elec-
trodes. The liring gap is .025", Always clc
b
b
sulator and the electrodes prior to settlng it-lf$l
Always bend the side electrode toward the csl$
electrode when setting the gap. Rounded or pitted
electrodes should be filed smooth and square to in-
duce the spark lo jump the gap.
t
lf the spark plug is suspected of being faulty, lry a new one in its place. lf the new one works, discard the old one.
However, the condition of the old plug tells a story about your engine:
Dry, black or light gray to tan appearance.
8ooly, oilyblack carbon on botlom and electrode&
While to light gray powdery deposits, or burnt gray
blistered look ol the center electrode porcelain in-
sulator. Center electrode appears melted and insu-
lator burned.
Yellow ash deposit. Core bridging or gap bridging
with carbon or olher deposits.
This is a normal appearance of plug after consider-
able service.
Engine has peen getting too mueh fuel or too much
oil in the fuel; or ignition voltage may be low; or
wrong heat range plug has been used.
Engine running too hol. Keep air intake clean. Also
check carburetor adjustment and look lor an air leak
in luel system or in engine walls.
Caused by additives in gasoline or oil; use proper in-
gredients when mixing fuel. Engine in need of over-
haul due to prolonged usage; or wrong oil or incor-
rect fuel mixture.
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