Troubleshooting - Husqvarna 365 X-Torq Workshop Manual

Troubleshooting

The various faults that can aff ect a chainsaw are divided into four groups. In each group the likely
symptoms are given on the left and possible causes are listed on the right. The most likely faults are given fi rst, and so on.
Starting
Diffi culty starting Adjust L screw
Air fi lter blocked
Choke not working
Worn choke pivot
Worn choke valve
Fuel fi lter blocked
Fuel line blocked
Piston ring seized
Blocked impulse channel
Carburettor leaking Loose or faulty fuel pipe
fuel Hole in diaphragm
Worn needle valve
Needle valve assembly sticking
Needle valve set too high
Leak in metering system (air or fuel)
Loose cover on carburettor
pump side
Flooding when eng- Worn needle valve
ine not running Needle valve set too high
Needle valve assembly sticking
Idling (low rpm)
Adjust L screw
Will not idle
Leaking air intake hose (rubber)
Loose carburettor mounting bolts
Loose or faulty fuel hose
Fuel fi lter blocked
Fuel line blocked
Fuel tank vent blocked
Throttle valve pivot stiff
Throttle pushrod sticking
Defective throttle return spring
Bent throttle stop
Faulty diff user jet
Adjust L screw
Idling too rich
Worn needle valve
Needle valve set too high
Worn needle valve lever
Leaking control diaphragm/cover plate
Needle valve assembly sticking
48 –English
TROUBLESHOOTING
Idling (low rpm) (cont.)
Idles when L screw
closed
Idling uneven
L screw requires
constant adjustment
Too much fuel at
idling
Worn needle valve
Leaking control diaphragm/cover plate
Needle valve assembly sticking
Worn needle valve lever
Faulty diff user jet
Fuel fi lter blocked
Fuel line blocked
Leaking air intake hose (rubber)
Loose carburettor mounting bolts
Worn throttle valve pivot
Loose throttle valve screw
Worn throttle valve
Needle valve assembly sticking
Leak in metering system (air or fuel)
Metering system centre knob is worn
Hole in diaphragm
Leaking control diaphragm/cover plate
Crankcase leaking
Fuel line blocked
Needle valve set too high
Needle valve assembly sticking
Leak in metering system (air or fuel)
Leaking control diaphragm/cover plate
Faulty diff user jets
Crankcase leaking
Needle valve set too high
Needle valve assembly sticking
Metering system damaged
Worn needle valve
Leaking control diaphragm/cover plate
Metering system incorrectly assembled