11. Its automatic dry centrifugal clutch is driven by V-belt. 12. The clutchless four speed transmission ( centrifugal clutch ) does not require a clutch lever. 13. The unit comprised a reciprocating compressor driven, through a centrifugal clutch , by a diesel engine. 14. These generally incorporate a type of centrifugal clutch to allow the engine to idle independently. 15. They were small, single-seat, self-powered cars using Briggs and Stratton lawn-mower type engines with centrifugal clutches . 16. The Citro�n 2CV gained an optional centrifugal clutch , marketed in English-speaking countries as " Trafficlutch ". 17. From 1956 a " Manumatic " two pedal ( centrifugal clutch ) transmission was an option. 18. It used a centrifugal clutch designed by Orcutt. 19. A centrifugal clutch is used in small engine-powered devices such as chain saws, go-karts and model helicopters. 20. Smooth starting was obtained by fitting a centrifugal clutch and two stage control, using a switch and resistance.