Weed Eater SST25 - Engine Troubleshooting; Engine Storage Preparation; Troubleshooting Common Issues

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
NING
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.
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