Yamaha P-165

[99yam40]

Well that is not a 165 hp motor, and a lot of the small motors may not have a tell tail indicator.
Good luck with your search

[yamahas09]

It is not 165hp, I think the 165 is for the cc's? It is either a 6 or 8hp. Does it look like their might be one on there? I don't think so.