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• Make sure that the engine has stopped and is
cool before performing any service to the
machine. Contact with moving cutting head
or hot muffler may result in a personal injury.
■ AIR FILTER
• The air filter, if clogged, will reduce the engine
performance. Check and clean the filter element
in warm, soapy water as required. Dry
completely before installing. If the element is
broken or shrunk, replace with a new one. (MA5)
(1) air filter
■ FUEL FILTER
• When the engine runs short of fuel supply, check
the fuel cap and the fuel filter for blockage.
(MA6)
(1) fuel filter
■ SPARK PLUG
• Starting failure and mis-firing are often caused
by a fouled spark plug. Clean the spark plug and
check that the plug gap is in the correct range.
For a replacement plug, use the correct type
specified by RedMax. (MA7)
• REPLACEMENT PLUG IS A NGK CMR7A.
• Note that using any spark plug 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.
87~104 in-lbs
TIGHTENING TORQUE:
(9.8~11.8 N.m.)
■ MUFFLER
• Inspect periodically, the muffler for loose
fasteners, any damage or corrosion. If any sign
of exhaust leakage is found, stop using the
WARNING
IMPORTANT
WARNING
9. Maintenance
.025 in
0.655mm
MA7
(1)
MA6
(1)
MA5