Husqvarna 966067001 User Manual
TRoUBLESHooTING
28
Symptom
Cause
Action
Engine will not start
User error
User error
Fuel valve closed.
open the fuel valve.
Choke valve open
Close the choke with cold engine.
Engine switch in oFF position
Turn the engine switch to oN
Fuel system
Fuel tank empty
Fill with fuel
Machine stored without observing
proper procedure from chapter
“Storage/Winter storage”
proper procedure from chapter
“Storage/Winter storage”
Clean tank, sludge reservoir and
empty carburetor. Fill the tank with
fresh fuel.
empty carburetor. Fill the tank with
fresh fuel.
Contamination, water or ice in fuel
system.
system.
Clean tank, sludge reservoir and
empty carburetor. Fill the tank with
fresh fuel.
empty carburetor. Fill the tank with
fresh fuel.
Carburetor problems.
Contact an authorized service
workshop.
workshop.
Spark plug
Wrong spark plug type.
Replace the spark plug.
Build-up on electrodes. Short
circuit.
circuit.
Check electrode gap and clean or
replace spark plug.
replace spark plug.
Gasoline or oil on the spark plug.
Clean the spark plug. Air the
engine out. Start with full throttle.
engine out. Start with full throttle.
No spark after checking spark plug Faulty engine switch, cable or
ignition.
Contact an authorized service
workshop.
workshop.
Low compression
Serious interior engine damage or
faulty valves.
faulty valves.
Contact an authorized service
workshop.
workshop.
Engine is under-powered or runs
unevenly
Air filter
unevenly
Air filter
Clogged air filter
Clean or replace the air filter
Fuel system
Machine stored without observing
proper procedure from chapter
“Storage/Winter storage”
proper procedure from chapter
“Storage/Winter storage”
Clean tank, sludge reservoir and
empty carburetor. Fill the tank with
fresh fuel.
empty carburetor. Fill the tank with
fresh fuel.
Blue or voluminous
blue-white exhaust
blue-white exhaust
Contaminated or incorrect fuel
Clean tank, sludge reservoir and
empty carburetor. Fill the tank with
proper fuel.
empty carburetor. Fill the tank with
proper fuel.
Black exhaust
Choke left on
open choke valve
Clogged air filter
Clean or replace the air filter
Carburetor problems
Contact an authorized service
workshop.
workshop.
Ignition system
Wrong spark plug type
Replace the spark plug
Build-up on electrodes. Short
circuit.
circuit.
Check electrode gap and clean or
replace spark plug.
replace spark plug.
Faulty ignition unit.
Contact an authorized service
workshop.
workshop.
Low compression
Serious interior engine damage or
faulty valves.
faulty valves.
Contact an authorized service
workshop.
workshop.