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MA4
.025 in
0.655mm
MA5
38
English
9. Maintenance
■ SPARK PLUG
• Starting failure and mis-firing are often caused by a
• REPLACEMENT PLUG IS A NGK CMR7H.
• Note that using any spark plug other than those
• To install the spark plug, first turn the plug until it is
■ MUFFLER
• Inspect periodically, the muffler for loose fasteners,
• Note that failing to do so may result in the
■ SPARK ARRESTER
• The muffler is equipped with a spark arrester to
(1)
(1) spark arrester
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. (MA4)
IMPORTANT
designated may result in the engine failing to
operate properly or in the engine becoming
overheated and damaged.
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.)
WARNING
any damage or corrosion. If any sign of exhaust
leakage is found, stop using the machine and have it
repaired immediately.
engine catching on fire.
prevent red hot carbon from flying out of the exhaust
outlet. Periodically inspect and clean as necessary
with a wire brush.
In the State of California it is required by law
(Section 4442 of the California Public Resources
Code) to equip a spark arrester when a gas powered
tool is used in any forest covered, brush covered, or
grass covered unimproved land. (MA5)
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