Husqvarna T525 Workshop Manual page 60

Troubleshooting
High speed
Does not run Adjust the H-screw
at full throttle Blocked air filter
Tank venting clogged
The fuel filter is clogged
The fuel hose 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 membrane/
cover plate
Control system is binding
Clogged muffler
Low on power Adjust the H-screw
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 binding
Leaking control system (air
or fuel)
Control system incorrectly
assembled
Loose diaphragm rivet
Hole in the membrane
Leak in control membrane/
cover plate
60
– English
Will not "four Tank venting clogged
stroke" The fuel filter is clogged
The fuel hose 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 membrane/
cover plate
Acceleration and retardation
Does not ac- Adjust the L-screw
celerate Adjust the H-screw
Blocked air filter
Tank venting clogged
The fuel filter is clogged
The fuel hose 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 binding
Faulty diffuser jet
Clogged muffler
The engine Adjust the L-screw
stops when Adjust the H-screw
releasing the Faulty pump diaphragm
throttle Control system set too high
Control system is binding
Faulty diffuser jet
Too rich ac- Adjust the L-screw
celeration Adjust the H-screw
Blocked air filter
Faulty pump diaphragm
Faulty diffuser jet