Description Cylinder Sleeve: Yamaha 75 - 90 Hp Yamaha 3 Cyl 3.228 Bore 75 1994-2000 Yamaha 3 Cyl 3.228 Bore 85 1994-1996 Yamaha 3 Cyl 3.228 Bore 90 1984-2004 Note: 3.434" - Straight