When I bought my 2010 Classic C165, it came with a yammie 50 2 stroke.
The motor was not heavy enough for the boat and the boat would sit in the water bow down a bit.
Tried moving all the batteries and heavy gear to the rear but it was not enough. Also, with 3 people in the boat it had a tough time getting up on plane.
Switched to the yammie 70 and now it is the boat I always wanted..
Wisdom comes with age,
but sometimes age comes alone.....