I am going to be repowering my boat I WILL BE BUYING SOMETHING IN THE 75 TO 115 HP RANGE.i have a couple ?'s to help me start to decide on what size and make . 1. my boat is rated for 115 hp is it okay to get a 115 or go a little smaller ,if i go w/ a 4 stroke what size would be good. 2. I am look ing at a yamaha 90 hp and a johnson 90 or 115 hp any thoughts on these motors 3. i'm not that concerned w/ fuel economy is it better to go with carbs not fuel inj. and keep it simple ??? thanks for the input