Re: Speed Question?
Go to yamaha's web site. click on "Performance Bulletins". Select two stroke. Select you HP, and then make your boat selection. The performance bulletins will be listed for all engines in that HP range. They may or may not have tested your exact boat but this is one of the most complete data bases I've found. You can also pick a boat close to what you have for comparison purposes. They will list engine rpm at various speeds, fuel consumption, time to plane, noise level in some tests, and the prop used in the test.