Repower for 18'SF

[Beaver]

I wonder what the weight difference is between the 130 yam and the 150? I had a 6 cylinder Johnson 185 on my last boat and it was super reliable. It would push my heavy boat over 40 mph. I can only imagine how fast a 150 would push an 18 SC. The down side was it sucked gas like crazy. On my 21 Chris Craft I only got about 1.7 mpg. I now have a Tohatsu 90A (old school carb and very little electrical) on my 18 SC and I love it! I get over 3 mpg and over 30 mph with 2 guys and a boat full of gear.