The F90 is a clean, quiet and fuel-efficient four-stroke, four-cylinder beauty that's packed with power, versatility and legendary Yamaha reliability. And, it features Electronic Fuel Injection. Power trim and tilt let you max your acceleration and top-end speed. Keeping your engine humming has never been easier, with easy-access oil fill, dipstick and spin-on filter, plus an oil pan drain engineered for quick and clean oil changes. On the subject of clean, the F90 has a three-star CARB rating and exceeds 2006 Federal emission standards. Because if you're good to the lake, the lake will be good to you.