POWERFUL & FAST
The 1.8-litre V MAX SHO 115 features Yamaha's advanced 16-valve double-overhead cam (DOHC), four-cylinder design, which means better breathing for better performance. Those sixteen large intake and exhaust valves make more power and midrange torque. They are fed by a large (60mm) single throttle body with Yamaha's long-track intake system and a free-flow exhaust. Full-throttle rpm range is 6,300, which means Yamaha can better tailor the gear ratio for low speed thrust and still deliver great top end. A knock sensor, an unexpected feature in this class of outboard, allows the engine to operate constantly at peak output. The result is great top speed, 3.65 miles per hour faster than that of the Yamaha F115.