Husqvarna 570 XP/G Workshop Manual page 57

High.speed
Does not run Blocked air filter
at full throttle Tank venting clogged
The fuel filter is clogged
The fuel line is clogged
Loose or defective fuel hose
Impulse channel leaking
Blocked impulse channel
The cover on the carburettor pump
side is loose
Faulty pump diaphragm
Leaking inlet hose (rubber)
Loose clamping screws
carburettor
Control system set too low
Control system damaged
Control system incorrectly
assembled
Leak in control diaphragm/
cover plate
Control system is jamming
Blocked muffler
Low on power Tank venting clogged
The fuel filter is clogged
Impulse channel leaking
Blocked impulse channel
The cover on the carburettor pump
side is loose
Faulty pump diaphragm
Blocked air filter
Control system is jamming
Leaking control system (air or fuel)
Control system incorrectly
assembled
Loose diaphragm rivet
Hole in the membrane
Leak in control diaphragm/
cover plate
Too lean Tank venting clogged
The fuel filter is clogged
The fuel line is clogged
Loose or defective fuel hose
Impulse channel leaking
Blocked impulse channel
The cover on the carburettor pump
side is loose
Faulty pump diaphragm
Leaking inlet hose (rubber)
Loose clamping screws
carburettor
Control system set too low
Leaking control system (air or fuel)
Control system incorrectly
assembled
Loose diaphragm rivet
Hole in the membrane
Leak in control diaphragm/
cover plate
TROUBLESHOOTING
Acceleration.and.retardation
Troubleshooting.techniques
In addition to faults given in the above schematic,
troubleshooting can be carried out on a specific component
or specific chain saw system. The different procedures are
described in respective sections, see the list of contents,
and are as follows:
•
•
•
•
Does not Blocked air filter
accelerate Tank venting clogged
The fuel filter is clogged
The fuel line is clogged
Loose or defective fuel hose
Blocked impulse channel
The cover on the carburettor pump
side is loose
Faulty pump diaphragm
Leaking inlet hose (rubber)
Loose clamping screws
carburettor
Control system set too low
Control system incorrectly
assembled
Control system is jamming
Faulty diffuser jet
Blocked muffler
The engine Faulty pump diaphragm
stops when Control system set too high
releasing the Control system is jamming
throttle Faulty diffuser jet
Blocked air filter
Too rich
Faulty pump diaphragm
acceleration
Faulty diffuser jet
Resistance testing the stop plate
Pressure testing the carburettor
Pressure testing the decompression valve
Pressure testing the cylinder
English – 57