Yamaha Outboard - LF300XA. 25-Inch Shaft Counter Rotation Mechanical Control Electric Start Power Trim & Tilt EFI with Variable Camshaft Timing Gray. The Yamaha Outboard - LF300XA is designed for offshore boats that require powerful counter-rotating performance. Built on Yamaha's 4.2-liter V6 platform with Variable Camshaft Timing (VCT) and Electronic Fuel Injection (EFI), it delivers explosive acceleration, outstanding midrange torque, and dependable fuel efficiency.. With a 25-inch shaft and counter-rotation capability, this engine enhances tracking and stability in twin-engine setups, especially when maneuvering in tight spaces or rough seas. Mechanical control ensures a direct, responsive feel for captains who prefer the traditional throttle and shift connection.. Key Features. Engine Type: 4.2L V6, DOHC with Variable Camshaft Timing. Horsepower: 300 HP. Fuel System: Electronic Fuel Injection (EFI). Controls: Mechanical Control. Start Type: Electric Start. Shaft Length: 25". Rotati