Yep exactly the same.
Mines 2016/17, only done 4 hours, is immaculate and comes with manuals.
First question (as you are currently my main reference point for knowledge) is about the fuel mix.
I only have experience on one type of outboard (50hp 2 stroke Tohatsu).
Its the only outboard we used when I was in a boat troop.
We used a 50-1 mix on them at all times.
Upon reading the manual for the 15hp Yamaha I noticed that the page about running in protocols says use a 50-1 mix (This I am familiar with).
However the section about standard operational procedures says use 100-1 mix.
Don't shoot me if I'm stateing the obvious here but are you running on 100-1 now yours is run in ?
Splash
__________________
|