Difference between Yamaha 40 and 50? (1989)

[<Keke>]

I heard that 40 and 50 engines does only have different jet sizes? Is it true or does they have more differences? Thanks


-Keke

[<boats.net>]

Not sure Carb jets along will not account for 10HP

[<Keke>]

Yes, I think you are right. oh well. hope someone will know.


-Keke