Question: are honda and yamaha props interchangeable?
Answer: Providing the props are for the same size & direction gearbox eg right hand 4&1/4" gearbox & have the same number of splines eg 15 then Honda, Mercury, Mariner, Yamaha & Tohatsu props will be interchangeable (bigger Tohatsu"s are Honda"s anyway), some possibly requiring a spacer washer.