Kawasaki STX-15F - Manual (Page 274)

11-4 PUMP AND IMPELLER
Specifications
Item Standard Service Limit
Jet Pump
Impeller Outside Diameter 147.5 ∼ 147.7 mm (5.8071 ∼ 5.8149 in.) 146.5 mm (5.7677 in.)
Pump Case Inside Diameter 148.0 ∼ 148.1 mm (5.8268 ∼ 5.8307 in.) 149.1 mm (5.8701 in.)
Impeller Clearance 0.15 ∼ 0.3 mm (0.0059 ∼ 0.0118 in.) 0.6 mm (0.0236 in.)