Flying Horse 49cc 4-Stroke Motorized Bicycle Engine Clutch Flyweight Spring &ndash; Gas Bike Clutch Spring Replacement This 4-Stroke Clutch Flyweight Spring replaces the flyweight spring on Huasheng 4-stroke bicycle engine kit clutch flyweights Note: these flyweight springs are for flyweights on the Huasheng 142F motors with chain driven transmission To install simply hook the short hook in to the spring port on one clutch shoe, then take the longer hook and place it around the clutch spring nut on the other clutch shoe, and repeat until all three springs are installed If you need a set, please add 3x to the shopping cart quantity