请特别注意：在一定周期内清洁化油器里面的燃油滤网，否则将引起油针调节失灵，发动机工作不稳等情况。
NOTICE: Please clean the fuel filter in the carburetor periodically, otherwise failure occurs with needle adjustment and the engine may work unsteadily etc.
清洗吸油口处过滤网，清除附着在过滤网上的杂质。
Three, clean the oil filter net, remove impurities attached to the filter net.
气流最后通过过滤网滤去较小尘粒和油滴，从而达到净化的目的。
Air filter to smaller screen and through the dust grain and oil droplets, so as to achieve the purpose of purifying.
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