That setup suggests less mass inside the cylinder head and minimized pounds for the overall outboard. At the same time, four valves per cylinder implies good motor combustion, which contributes to horsepower, torque and gas performance. Fast Acceleration Subscribe to have all the newest Yamaha merchandise news, promotions, stories and https://yamaha-80-hp-outboard-mot34567.ampedpages.com/5-simple-statements-about-yamaha-30-hp-outboard-motors-explained-62458485