hi all . i have a 1986 larson senza 16 foot bowrider with a 140 johnson on the back of it .can someone tell me how much this motor weighs ? i am thinking this motor is to big and to heavy for this boat .the motor runs great but i have a 15 year old boy who wants to take it out with his friends . this boat wide open is like a missle going across the water . i am thinking of selling the motor or looking for a smaller one on e bay . about a 85 or 100 merc . this is the first johnson i have ever owned always had a merc . thanks .