Re: Unsure!!
Not true. The 07' models are completely different powerheads manufactured by Mercury and not Yamaha as in the past. The 07' models are based on the Verado powerhead and are said to be bulletproof. They are also smoother running and IMO are a bit more powerful than the old carb. models, which the 2006 4-stroke model is. And the new 4-stroke engines are Smartcraft compatable. I have an 07' 90 and love it...