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Problem Possible cause Remedy
The engine cuts out. Incorrect carburettor setting The carburetor can be adjusted 
by a professional.
or
please contact service center.
The engine starts but
delivers very little power.
Incorrect choke lever setting
Air lter dirty
Incorrect carburettor setting
Set it to 
Remove the air lter, clean it with 
soap suds, dry it and then t it 
again.
Have the carburettor adjusted by 
a specialist.
The engine does not start or 
starts but then cuts out again.
Incorrect starting procedure
Incorrect carburettor setting
Sooted spark plug
Follow the instructions in “Start 
when the engine is cold”
Have the carburettor adjusted by 
a specialist.
Clean the spark plug, correct the
electrode gap or replace the 
spark plug.
The engine runs unevenly. Incorrect electrode gap on the
spark plug
Burned spark plug
Clean the spark plug, correct the
electrode gap (ideally 0.25”/0.63 
mm) or replace the spark plug.
Excessive smoke development. Incorrect carburettor setting
Incorrect fuel mixture
Have the carburettor adjusted by 
a specialist.
Empty the tank, and rell it with 
the correct mixture: 2-stroke, 
ratio 40:1
Residual risks
Even when properly used in the tool is always 
some residual risk that can not be excluded. From 
the nature and design of the tool, the following 
potential hazards can be derived :
- Contact with the unprotected chain ( cuts);
- Reaching into the running saw chain (cut injury);
- Unexpected , sudden movement of the guide 
rail ( cuts);
- Ejection of parts of the chain;
- Ejection of parts of the material to be cut;
- Impairment of hearing , if there is no prescribed 
hearing protection is worn;
- Inhalation of of material to be cut;
- Risk of kickback;
- This device produces an electromagnetic eld 
during operation ! This eld can interfere with 
active or passive medical implants under certain 
circumstances!
To reduce the risk of serious or fatal injury , we 
recommend persons with medical implants their 
physician and the manufacturer of the medical 
implant consulted before the instrument is used !