Yamaha 150 4-stroke

[HatTrick]

I have been reading about repower options on this excellent forum and I have a question. Sorry to beat a dead horse, but, I am repowering a 1986 SeaCraft 20CC. I am leaving behind a tired but faithful 1986 150 hp Mercury Black Max. After much consideration on my priorities I settled on a Yamaha 150 hp 4 stroke. It is lighter than the HPDI, it's only 30 lbs heavier than most other 2-stroke DFI's, it's 15 lbs lighter than the Honda 4-stroke, and the 135 DFI's seem to be the same weight as the 150's. Without the oil reservoir, and if I move my battery from the stern to under the console I would think that the weight over the stern should not be dramatically different.