an authorized service center.
ENGINE
Problem Probable cause Corrective action
Engine not starting
Engine switch not in “I“
position (ON)
Put the engine switch to “I“ position
Fuel tap closed Open the fuel tap
Non-correct position of
choke lever
Cold engine - put choke lever into
position CHOKE
Hot engine - put the choke lever into
position RUN
Socket plug not fitted Fit the socket plug
Spark plug dirty or faulty Clean or replace the spark plug
Incorrect spark plug
electrodes distance
Set the electrodes distance to 0.7 –
0.8 mm
Fuel tank empty Add fuel
Old fuel Replace old fuel with new one
Engine switching off
after being started
Air filter dirty Clean the air filter
Too big distance of spark
plug electrodes
Set the electrodes distance to 0.7 –
0.8 mm
Spark plug dirty or faulty Clean or replace the spark plug
Engine failing
Socket plug or cable released
Fix the socket plug firmly on the
spark plug. Fix the spark plug cable
Fuel screen dirty Clean the fuel screen
Air hole in the tank lid
blocked
Change the tank lid
Air filter dirty Clean the air filter
Old fuel Replace old fuel with new one
Engine failing in high
revolutions
Engine with too low
output
Too small distance of spark
plug electrodes
Set the electrodes distance to 0.7 –
0.8 mm
Air filter dirty Clean the air filter
Sweeping brush blocked by
foreign items
Remove foreign items off the
sweeping brush
Engine getting too
much heated
Cooling air system blocked
Clean the ventilation louvers and
cooling fins
Too little of engine oil Add engine oil
Air filter dirty Clean the air filter
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