method for the metered lubrication of a chain drive, in particular a motorcycle chain drive, which has at least one chain wheel, with the aid of an apparatus for the pulse-metered delivery of a lubricant fluid, which device has a pulse metering system with a control device, meetod kettajami, eelkõige mootorratta kettajami, millel on vähemalt üks ketiratas, doseeritud määrimiseks määrdeaine juhtimisseadisega impulsimõõturiga väljalaskeseadme abil