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Normal operation of engines in big degree depends on a condition of spark plugs. Having turned out candles, examine them. If the candle insulator light brown or gray-steel color, means the carburetor is adjusted correctly and the candle works correctly. Light gray or white color of an insulator specifies that a mix very poor if the deposit on a candle black, means a mix reenriched. If electrodes and an insulator of a candle are greasy, it means that or this candle gives a spark with interruptions, or piston rings are worn-out. Before installation of a candle it is necessary to clear a metal brush, to wash out gasoline and to dry. To adjust a gap between candle electrodes, turning in a lateral electrode. To bend the central electrode it is impossible, since it is possible to damage a candle. Tighten candles the moment of 20 N of m (2,0 кгс.м). |