Yamaha LF350USA Outboard Motor. 30-Inch Shaft 4.3-Liter V6 Digital Electronic Control Electronic Fuel Injection Electric Start Power Trim and Tilt Gray Counter Rotation. The Yamaha LF350USA is the 30-inch shaft, counter-rotation version of Yamaha's most powerful V6 offshore outboard. Designed specifically for multi-engine offshore rigs, it provides balanced thrust, reduced steering torque, and improved handling when paired with standard rotation models. Powered by the 4.3-liter V6 platform, the