Billet Drive Couplers - Yamaha Superjet

Yamaha billet driveline couplers. Billet aluminum driveline couplers. Fits all Yamaha SJ except for 1991 and some 1992 Yamaha 650 Sj's. Machined from 6061-T6 aluminum for superior strength and durability. Utilizes a Kawasaki style damper which is not only smaller in diameter but also stronger and helps reduce heat build-up in the driveline. Crank side coupler has 27-1.5mm threads and the mid-shaft side coupler has 24-1.5mm threads. Uses the Kawasaki style 750/800 rubber damper (not included) - https://www.blowsion.com/coupler-dampener-for-yamkawi Part Number: 02-02-251 ALSO REQUIRED: Kawasaki Drive Coupler Damper