268 repower with four strokes

[uglydogg2]

Does anyone have any idea what kind of burn rate(gallons per hour) i would get with twin 200 hp yamaha four strokes on my 268 islander model year 2000 or with a single 300 or 350 four stroke?

 

[ocnslr]

Sorry that I can't help with your question.

We repowered from the original single 250HP OX66 (1.2-1.25nm/gal) to twin F150s. We had 465hrs on the OX66, and now have almost 1100hrs on the F150s. We get 1.5-1.7nm/gal, depending on load and speed. Can get 1.8nm/gal if I put the Black SS props back on.

Someone in our club just repowered a 268 with the new 300HP Yamaha. They love it.

Good luck with your repower.

Brian