The principal clutch is a complicated form of centrifugal clutch and is usually mounted on the output close from the engine crankshaft. The clutch has two sheave faces; one that is laterally preset (stationary sheave), and one that can move in and out to engage the belt (moveable sheave). https://waylonqqpmj.blogdemls.com/32200597/the-5-second-trick-for-gearbox-cvt