9. Trouble shooting
10. Disposal
WARNING
•
Do not modify or disassemble the machine.
Modification or disassembly of the machine might
cause the machine to be damaged during opera-
tion, 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.
•
Use ZENOAH’s genuine or dedicated tightening
parts (bolts, nuts and screws). Use of other manu-
facturers’ parts might damage the machine, or
cause an unexpected accident due to parts falling
off while the machine is in operation.
• When you dispose of the machine, do not disas
-
semble the machine.
• When you dispose of the machine, fuel, oil, be sure
to follow your local regulations.
PHENOMENON
MAIN CAUSE
MEASURES
The engine does not start.
• Bad fuel (different quality, deterioration)
• Replace it with normal fuel (page 9).
• Excessive sucking of fuel
• Open the choke, open the throttle full
open, and pull out the rope repeatedly
(page 10).
• Clogging of the muffler exhaust vent
• Clean the muffler (page 13).
• Contamination of the spark plug elec
-
trodes, Short-circuit or breaking of a wire
• Clean the electrodes or replace the plug
(page 12
I
).
The engine does not accelerate.
• Bad fuel (different quality, deterioration)
• Replace it with normal fuel (page 9).
• Clogging of the muffler exhaust vent
• Clean the muffler (page 13).
The engine stalls when the throttle is
returned to its original position.
• The idling revolution speed is too low.
• Readjust the idling adjustment screw
(page 11).
The engine rotation speed changes.
• Clogging of the fuel filter
• Clean or replace the fuel filter (page 12
I
).
Deterioration of fuel consumption
• Clogging of the air cleaner
• Clean the air cleaner (page 12).
• Bad lubrication of the gear case
• Supply grease (page 12).
• 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
I
, please buy ZENOAH’s genuine parts at the shop where you bought this product.
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