Craftsman 79481 Operation Manual - Page 13

spark plug before

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TROUBLESHOOTING TABLE WARNING: Always stop unit and disconnect spark plug before performmg any of the recommended remedies below other than remedies that require operation of the unit. TROUBLE CAUSE REMEDY Engine will not start. Engine will not idle properly. Engine will not accelerate, lacks power, or dies under a load. Engine smokes excessively. Engine runs hot. 1. Engine flooded. 2. Fuel tank empty. 3. Spark plug not firing, 4. Fuel not reaching carburetor. 5. Compression low. il. Fuel not reaching ' carburetor. _2. Carburetor requires adjustment• 4.3. CompressionCsreaalnolskws.hwaoftrn. 1. Air filter dirty. 2. Fuel not reaching carburetor. 3. Spark plug fouled. adjustment. Carbon build up. ii Coamrbpurreetsosrion requloirwes. i 1. Choke partially on. i2. Fuel mixture incorrect. i 3. Air filter dirty. i4. Carburetor requires adjustment. _1. Fuel mixture incorrect. 2. Spark plug incorrect. _3. Carburetor requires :i adjustment. 4. Carbon build up. 1. See "Starting a Flooded Engine" _ in Operation section. 2. Fill tank with correct fuel mixture. i13. Install new spark plug. 4. Check for dirty fuel filter; replace. Check for kinked or split fuel line; repair or replace. i 5. Contact Sears Service (see back cover). i 1. Check for dirty fuel filter; replace. Check for kinked or split fuel line; repair or replace. i2. Contact Sears Service (see back cover). i 3. Contact Sears Service (see back cover), 4. Contact Sears Service (see back cover). 1. Clean or replace air filter, 2. Check for dirty fuel filter; replace, Check for k nked or sp t fue ne; repair or replace. i3. Clean or replace spark plug and re-gap. i4. Contact Sears Service (see back cover). _5.Contact Sears Service (see back cover). 16. Contact Sears Service (see back cover). t. Adjust choke. 2. Empty fuel tank and refill with correct fuel mixture. i3. Clean or replace air filter. i4. Contact Sears Service (see back cover). i • See "Fueling Engine" in Operation section. i2. Replace with correct spark plug. i3. Contact Sears Service (see back cover). 4• Contact Sears Service (see back cover). -13-

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TROUBLESHOOTING
TABLE
WARNING:
Always
stop unit and disconnect
spark plug before
perform-
mg any of the recommended
remedies
below
other than remedies
that re-
quire
operation
of the unit.
CAUSE
REMEDY
TROUBLE
Engine
will
not
start.
Engine
will
not
idle properly.
Engine
will
not
accelerate,
lacks
power,
or
dies
under
a
load.
Engine
smokes
excessively.
Engine
runs
hot.
1. Engine
flooded.
1. See "Starting
a Flooded
Engine"
_
in Operation
section.
2. Fuel
tank
empty.
2. Fill tank
with
correct
fuel mixture.
3. Spark
plug
not firing,
i13. Install new
spark
plug.
4. Fuel
not reaching
4. Check
for dirty fuel filter;
replace.
carburetor.
Check
for kinked
or split fuel line;
repair
or replace.
5. Compression
low.
i 5. Contact
Sears
Service
(see
back cover).
il.
Fuel
not reaching
i 1. Check
for dirty fuel filter;
replace.
'
carburetor.
Check
for kinked
or split fuel line;
repair
or replace.
_2. Carburetor
requires
i2.
Contact
Sears
Service
(see
back cover).
adjustment•
i
3. Contact
Sears
Service
(see
back cover),
4.3. CompressionCrankshaft
seals
low.worn.
4. Contact
Sears
Service
(see
back cover).
1. Air filter
dirty.
1. Clean
or replace
air filter,
2.
Fuel not
reaching
2. Check
for dirty
fuel filter;
replace,
carburetor.
Check
for k nked
or sp
t fue
ne;
repair
or replace.
3. Spark
plug
fouled.
ii
arburetor
requires
adjustment.
Carbon
build up.
Compression
low.
i 1. Choke
partially
on.
i2.
Fuel
mixture
incorrect.
i 3. Air filter
dirty.
i4.
Carburetor
requires
adjustment.
_1. Fuel
mixture
incorrect.
2. Spark
plug
incorrect.
_3. Carburetor
requires
:i
adjustment.
4.
Carbon
build up.
i3.
i4.
_5.
16.
t.
2.
i3.
i4.
i
Clean
or replace
spark
plug
and re-gap.
Contact
Sears
Service
(see
back
cover).
Contact
Sears
Service
(see
back
cover).
Contact
Sears
Service
(see
back
cover).
Adjust
choke.
Empty
fuel tank
and refill with
correct
fuel mixture.
Clean
or replace
air filter.
Contact
Sears
Service
(see
back
cover).
• See "Fueling
Engine"
in Operation
section.
i2. Replace
with
correct
spark
plug.
i3. Contact
Sears
Service
(see
back
cover).
4
• Contact
Sears
Service
(see
back
cover).
-13-