BIG Question - replace Yamaha 150 HP with Honda 225HP

[THEFERMANATOR]

Originally Posted by Stillrunning

How much better on gas do you find the 4s over the 2s? Lets say a day trip where you would burn 25 gallons with a 2s how many gallons for the 4s?

The 4 stroke is mostly better than a 2 stroke NON-DFI looper at idle and slow speeds. At cruise the 4 stroke is probably only 5-15% better, and at WOT they are almost identical. A cross-flow engine is a wasteful SOB at pretty much any speed over idle to slow cruise when compared to a looper, but a looper burns excess fuel at idle to real slow speeds vs a cross-flow. DFI eliminates pretty all of the down falls of 2 vs 4 stroke.