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18
Maintenance and care
Cooling system maintenance
Always keep cylinder fins (A) clean. Clogged cylinder fins will
cause engine to overheat. Clean out grass, mud, leaves, and
other debris with a wooden stick periodically.
Cleaning silencer
Carbon deposits in silencer (A) will cause a drop in engine out-
put and overheating. Clean deposits from silencer.
Check fuel system
Check before every use.
After refuelling, make sure fuel does not leak or exude from
around fuel pipe (A), fuel grommet (B) or fuel tank cap (C).
In case of fuel leakage or exudation, there is a danger of fire.
Stop using the machine immediately and request your dealer
to inspect or replace.
Check spark plug
1.
Check plug gap. Correct gap is 0.6 mm to 0.7 mm.
2.
Inspect electrode for wear.
3.
Inspect insulator for oil or other deposits.
4.
If the electrodesor terminals are worn, or if there are cracks
in the ceramics, replace them with new parts.
5.
Tighten to 15 N·m - 17 N·m (150 kgf·cm to 170 kgf·cm).
∗
The spark test (for checking whether the spark plug is spark-
ing) must be carried out by your dealer.
Bypass nozzle plate
Clean bypass nozzle plate (A), if liquid chemical is not well
stirred-up in the tank.
IMPORTANT
Do not remove the silencer cover. If necessary, Please consult
your dealer.
a: 0.6 ‑ 0.7 mm
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