Originally Posted by skip brown I'm looking to upgrade and de-horsepower some. My boat is a 15 ft. Duracraft john. It had and still has a two stroke 35 hp Mercury. The motor is probably an early eighties model. The rating plate on the boat list 30hp max. Looking at maybe going with a 20 or 25hp 4-stroke. Does anyone on here have a similar setup with the 4-stroke. I really need to lighten the load on the boat with out jumping overboard.LOL .....This should reduce the motor weight by several pounds. Any input would be greatly appreciated. ...