Troubleshooting - Husqvarna SG 13 B Operator's Manual

PROBLEM
Engine will not start
User error
Fuel system
Spark plug
No spark after checking spark plug
Low compression
Engine is weak or runs unevenly
Air filter
Fuel system
Blue or blue-white exhaust
Black exhaust
Ignition system
Low compression
46 -
HUSQVARNA

TROUBLESHOOTING

CAUSE
Fuel valve closed
Choke valve open
Engine switch in OFF position
Fuel tank empty
Machine stored without observing
proper procedure from chapter
"Storage/Winter storage"
Contamination, water or ice in fuel
system
Carburetor problems
Wrong spark plug type
Build-up on electrodes, short circuit
Gasoline or oil on the spark plug
Loose spark plug
Faulty engine switch, cable or
ignition
Serious interior engine damage or
faulty valves
Clogged air filter
Machine stored without observing
proper procedure from chapter
"Storage/Winter storage"
Contaminated or incorrect fuel
Choke left on
Clogged air filter
Carburetor problems
Wrong spark plug type
Build-up on electrodes, short circuit
Faulty ignition unit
Serious interior engine damage or
faulty valves
ACTION
Open the fuel valve
Close the choke with cold engine
Turn the engine switch to ON
Fill with fuel
Clean tank, sludge reservoir and
empty carburetor, fill the tank with
fresh fuel
Clean tank, sludge reservoir and
empty carburetor, fill the tank with
fresh fuel
Contact an authorized service
workshop
Replace the spark plug
Check electrode gap and clean or
replace spark plug
Clean the spark plug, air the engine
out and start with full throttle
Check spark plug connection
Contact an authorized service
workshop
Contact an authorized service
workshop
Clean or replace the air filter
Clean tank, sludge reservoir and
empty carburetor, fill the tank with
fresh fuel
Clean tank, sludge reservoir and
empty carburetor, fill the tank with
proper fuel
Open choke valve
Clean or replace the air filter
Contact an authorized service
workshop
Replace the spark plug
Check electrode gap and clean or
replace spark plug
Contact an authorized service
workshop
Contact an authorized service
workshop