Zenoah BT225 Owner's/Operator's Manual page 21

9. Maintenance
MA1
MA2
MA3
WARNING
• Make sure that the engine has stopped and is
cool before performing any service to the
brushcutter. 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. Monthly 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. (MA1)
■ FUEL FILTER
• When the engine runs short of fuel supply, check
the fuel cap and the fuel filter for blockage.
(MA2)
■ 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(See SPECIFI-
CATIONS on the page 3). (MA3)
• REPLACEMENT PLUG IS A CHAMPION
RCJ6Y OR THE EQUIVALENT, SUCH AS
BOSCH WSR8E OR 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.
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