Mercury - Manual-owners - 90-10199000 Yamaha-F40B-2001 Jabsco's Neoprene Impeller Kit is

Jabsco's Neoprene Impeller Kit is used specifically in Jabsco's Water Puppy

Maybe the throttle feels a little sluggish

The Yamaha Premier II Control Cable | 12 Foot | MAR-CABLE-12-SC supports clean throttle and shift movement in compatible Yamaha mechanical control systems

A prop hub isn’t a part you want to gamble with

Mercury - Manual-owners - 90-10199000 Yamaha-F40B-2001 Jabsco's Neoprene Impeller Kit isThis product has been superseded by: 90 10199001 Manual ownersWARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings. ca. gov.