Zenoah BK3420FL-EZ Manuale Utente
37
English
8. TROUBLESHOOTING
• When the symptoms in the left column do not improve after taking the measures in the right column, please contact the shop
where you bought this product.
• For the measures marked with
✩, please buy ZENOAH’s genuine parts at the shop where you bought this product.
PHENOMENON
The engine does not start.
The engine does not accelerate.
The engine stalls when the throttle
is returned to its original position.
is returned to its original position.
The engine rotation speed changes.
Abnormal vibration
Deterioration of fuel consumption
MAIN CAUSE
• Bad fuel (different quality, deterioration)
• Excessive sucking of fuel
• Clogging of the muffler exhaust vent
• Contamination of the spark plug electrodes,
Short-circuit or breaking of a wire
• Bad fuel (different quality, deterioration)
• Clogging of the muffler exhaust vent
• The idling revolution speed is too low.
• Clogging of the fuel filter
• Deformation or damage of the blade
• Clogging of the air cleaner
• Blunt blade
• Bad lubrication of the flexible shaft
MEASURES
• Replace it with normal fuel (page 18).
• Open the choke, open the throttle full
open, and pull out the rope repeatedly
(page 20,21).
(page 20,21).
• Clean the muffler (page 34).
• Clean the electrodes or replace the plug
(page 32
✩).
• Replace it with normal fuel (page 18).
• Clean the muffler (page 34).
• Readjust the idling adjustment screw
(page 35).
• Clean or replace the fuel filter (page 31
✩).
• Replace the blade (page 27
✩).
• Clean the air cleaner (page 31).
• Replace the blade (page 27
✩).
• Supply grease (page 33).
• Do not modify or disassemble the machine. Modification or
disassembly of the machine might cause the machine to be damaged
during operation, or cause an unexpected accident due to the leakage
of fuel or malfunction of the machine.
during operation, or cause an unexpected accident due to the leakage
of fuel or malfunction of the machine.
• When you carry out inspection or maintenance of the machine, keep
the machine clear of fire (such as a lit cigarette). Otherwise, the fuel
might catch fire.
might catch fire.
• Use ZENOAH’s genuine or dedicated tightening parts (bolts, nuts and
screws). Use of other manufacturers’ parts might damage the machine,
or cause an unexpected accident due to parts falling off while the
machine is in operation.
or cause an unexpected accident due to parts falling off while the
machine is in operation.
WARNING