whats the difference

[james28144]

I have a 50 hp Evinrude..1971 model. eclectric shift push button trans.
my question is this....there are two models of this engine...50172S and 50173S...what is the difference on these two models?

 

[tashasdaddy]

Re: whats the difference

go to brp-evinrude.com engine diagrams/parts list and check

 

[WillyBWright]

Re: whats the difference

One is shortshaft, one is longshaft. (Probably)