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发动机的维护包括清洁、检查、补给、润滑、紧固和调整。现代电子燃油喷射式（简称电喷）发动机的维护与化油器式发动机的维护相比，补给、润滑和紧固作业是相似的，清洁、检查和调整作业则有较大区别。本文从这三方面介绍电喷发动机的维护作业特点。1清洁电喷发动机的清洁主要
Engine maintenance includes cleaning, inspection, replenishment, lubrication, fastening and adjustment. Modern electronic fuel injection (EFI) engine maintenance carburetor engine maintenance compared to the supply, lubrication and fastening operations are similar, cleaning, inspection and adjustment of the job there is a big difference. This article describes the characteristics of EFI engine maintenance operations from these three aspects. 1 cleaning EFI engine cleaning mainly