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Weed Eater SST25 Instruction Manual page 11

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ENGINE
* Remove
spark plug and pour 1 teaspoon
of
40:1,2-cycle
engine oil (air cooled) through
the spark
plug
opening.
Slowly
pull the
starter rope 8 to 10 times to distribute
oil.
• Replace spark plug with new one of recom-
mended
type and heat range.
• Clean air filter.
• Check
entire unit for loose
screws,
nuts,
and bolts. Replace
any damaged,
broken,
or worn parts.
• At the beginning
of the next season,
use
only fresh fuel having the proper gasoline to
oil ratio.
OTHER
• Do not store gasoline
from one season
to
another.
• Replace your gasoline can if it starts to rust.
TROUBLESHOOTING
TABLE
,_/L WAR
: Always stop unit and disconnect
spark plug before performing
all ofthe
NIN
G
recommended
remedies
below except
remedies
that require operation
of the unit.
TROUBLE
Engine will not
start.
CAUSE
1. Engine flooded.
2. Fuel tank empty.
3. Spark plug not firing.
4. Fuel not reaching
carburetor.
5. Carburetor
requires
adjustment.
Engine will
1. Carburetor
requires
not idle
adjustment.
properly.
2. Crankshaft
seals worn.
3. Compression
low.
1. Air filter dirty.
2. Spark plug fouled.
Engine will not
accelerate,
lacks power,
or dies under
a load.
Engine
smokes
excessively.
Engine runs
hot.
3. Carburetor
requires
adjustment.
4. Carbon
build-up
on
muffler outlet screen.
5. Compression
low.
1. Choke
partially on.
2. Fuel mixture
incorrect.
3. Air filter dirty.
4. Carburetor
requires
adjustment.
1. Fuel mixture incorrect.
2. Spark plug incorrect.
3. Carburetor
requires
adjustment.
4. Carbon build-up
on
muffler outlet screen.
REMEDY
1. See "Starting
a Flooded
Engine
in
Operation
Section.
2. Fill tank with correct
fuel mixture.
3. Install new spark plug.
4. Check for dirty fuel filter; replace.
Check for kinked or split fuel line;
repair or replace.
5. Contact
an authorized
service dealer.
1. See "Carburetor
Adjustment"
in
Service and Adjustments
Section.
2. Contact
an authorized
service dealer.
3. Contact
an authorized
service dealer.
1. Clean or replace
air filter.
2. Clean or replace
plug
and regap.
3. Contact
an authorized
service dealer.
4. Contact
an authorized
service dealer.
5. Contact
an authorized
service dealer.
1. Adjust
choke.
2. Empty fuel tank and refill with
correct fuel mixture.
3. Clean or replace
air filter.
4. Contact
an authorized
service dealer.
1. See "Fueling Engine" in Operation
section.
2. Replace with correct
spark plug.
3. Contact
an authorized
service dealer
4. Contact
an authorized
service dealer.
11

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