一些驾驶员常在起动发动机后表几脚油门，这是一种不正确的操作方式。发动机在长时间停放之后，各摩擦表面润滑油已基本流失，当起动发动机轰大油门时，有部分摩擦表面几乎是于摩擦；同时，化油器加速泵急剧泵油，且油量很大，尤其在冷车时，部分汽油来不及雾化就进入气缸中， Some drivers often start a few feet behind the engine throttle, which is an incorrect operation. Engine parked for a long time, the friction surface of the lubricating oil has been basically lost, when the engine starts to throttle the throttle, some of the friction surface is almost friction; the same time, the carburetor accelerates the pump oil quickly, and a large amount of oil, Especially in the cold car, some of the gasoline into the cylinder too late to atomize,