MOOSUN Centrifugal Clutch 3 4 Bore 35 Chain 12T for GO Kart Mini Bike Engine 3 4 Bar

Centrifugal clutch designed to be used on one wheel karts with rear tires no larger than 15" tall, and engines 2hp-7hp. Larger tires and live axles recommend using Torque-converter ( ASIN:B07T1KRS4V) Specifications: Clutch Bore: 3/4" Sprocket: 12 teeth for #35 chian Clutch Dia: 107mm Clutch Height: 55mm Engagement Speed: 2300±300 RPM Recommended Engine: 2HP - 6.5HP, 3/4" shaft with flat key Fitment: 2-6.5hp Honda & Honda cloned engines GC160, GC190, GX120, GX140, GX160, GX200 Perfect for Go Kart Minibike Baja Mini Bike MB165 & MB200 (Baja Heat, Mini Baja, Baja Warrior) Common clutch for 3.5-7hp engines using #35 Chain Briggs & Stratton and 2 - 6.5 HP with 3/4" Shaft Tecumseh Engines 2 - 7 HP with 3/4" Shaft This Kit Includes: 1x 12 teeth centrifugal clutch Go Kart Clutch kit includes two set screws, but chain is not included Recommended to always use bolt and washer on end of crankshaft to hold clutch securely onto the shaft ?