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MA3
MA4
.025 in
0.655mm
MA5
36
English
9. Maintenance
■ FUEL FILTER
• When the engine runs short of fuel supply, check the
fuel cap and the fuel filter for blockage. (MA3)
(1) Fuel filter
■ SPARK PLUG
• Starting failure and mis-firing are often caused by a
fouled spark plug. Periodically clean the spark plug
and check that the spark gap is in the correct range.
For a replacement plug, use the correct type
specified by RedMax/ZENOAH(See SPECIFI-
CATIONS on the page 4). (MA4)
• When you take off the spark plug, twist (1) and pull
off the cap (2). (MA5)
• REPLACEMENT PLUG IS A NGK BPMR7A.
IMPORTANT
• Note that using any spark plugs other than those
designated may result in the engine failing to operate
properly or in the engine becoming overheated and
damaged.
• To install the spark plug, first turn the plug until it is
finger tight, then tighten it a quarter turn more with a
socket wrench.
TIGHTENING TORQUE:
87~104 in-lbs
(9.8~11.8 N.m.)
■ MUFFLER
WARNING
• Inspect periodically, the muffler for loose
fasteners, any damage or corrosion. If any sign
of exhaust leakage is found, do not use the
brushcutter and have it repaired immediately.
• Note that failing to do so may result in the engine
catching on fire.
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