Is there any big difference between the '03 and the '04 115 Yamaha 4 -stroke?<br /><br />We are purchasing a 25 ft Sanpan and can upgrade from the existing '04 75 HP Yamaha 4 ST to a new, leftover '03 115 HP Yamaha 4 ST for minimal (<$1000).<br /><br />My feeling is to go with the bigger HP, but...
