Scottoiler Vsystem Value KitHow it works When you connect a vSystem motorcycle chain oiler to the bike you have a system that automatically gets to work when you start your motorcycle. Whilst it is operated by the engine vacuum, the vSystem oiler does not absorb any power or affect the performance of your engine because it is purely vacuum operated. It is easily installed and can be fitted to most bikes in an hour or two Engine vacuum operated chain oiler system Automatically