Zenoah YM415FW Manuale Utente

0.6 — 0.7mm

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• Check the blade and the fasteners for looseness, cracking, or bending.
• Check the cutting edges and reform with a flat file.

Point (F18):
1. Keep the end corner sharp.
2. Round the root of the edge.
3. Do not use water when using a grinder.

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• 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. (F19)

A clogged air filter may increase fuel consumption while cutting down the engine power.
And operate the brushcutter without the air filter or with a deformed filter element will
quickly ruin the engine.

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• Take the filter out of the fueling port using a small wire hook. Disconnect the filter

assembly from the fuel pipe and unhook the retainer to disassemble it. Clean the
components with gasoline. (F20)

A clogged fuel filter may cause poor acceleration of the engine.

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• Starting failure and mis-firing are often caused by a fouled spark plug. Periodically

clean the spark plug and replace with a new one as required. (F21a)

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• Supply multi-purpose grease at every 25 hours of use.
• Remove the cutter holders to arrange for old grease to exit. (F21)

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• Old fuel left in the carburetor may cause starting failure. When a series of operation

finished, make sure to empty the fuel tank and drain the carburetor.

• Check all parts and the functions. If the failured or damaged parts have been found,

replace them with new ones.