Yamaha F350XSA4 Outboard Motor. 25-Inch Shaft 4.3-Liter V6 Digital Electronic Control Electronic Fuel Injection Electric Start Power Trim and Tilt Classic White. The Yamaha F350XSA4 is the Classic White version of Yamaha's most powerful V6 offshore outboard. Built on the advanced 4.3-liter V6 platform, it delivers outstanding horsepower, torque, and reliability for serious offshore boaters. Its lighter weight compared to older V8 designs allows for better balance and efficiency without compromis