How does a go kart clutch work? The clutch that is activated by the increased rpm of the engine. The clutch should not engage when the kart is at idle. The engine manufacturer sets the idle speed
SMC Vortex Clutch (6 Spring) - Estimated Engagement Chart. The engagement speed is set by spring stiffness (Silver, Black,
Gold) and the position (1 thru 5) of the lower spring leg.
