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9. Maintenance
English
■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. (MA4)
(1)Air filter
■FUEL FILTER
•When the engine runs short of fuel supply, check the
fuel cap and the fuel filter for blockage. (MA5)
(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. (MA6)
•REPLACEMENT PLUG IS A NGK CMR7H.
•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.
TIGHTENING TORQUE:
87–104 (in-lbs)
(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
machine and have it repaired immediately.
•Note that failing to do so may result in the
WARNING
IMPORTANT
.025 in
0.655mm
MA6
(1)
MA4
(1)
MA5