Good economy Why? To achieve the desired workboat level of operating economy. Result. Maximum fuel efficiency with low fuel consumption across a previously unheard of range of use conditions. Lower emissions Why? To minimise adverse effect on the environment. Result. Lower NOx, SOx, CO, less particulates, significantly less black smoke, particularly at idle or during hard acceleration. High torque Why? To achieve the desired workboat responsiveness. Result.

Light in weight, small in size, high power output Cam Area Improvements: This engine contains many high performance features sure to appeal to the serious motorboater. The overhead cam design develops max hp at higher revs, allowing smaller, smoother running propellers. Camshaft is belt driven, reducing weight, number of parts, gear wear and noise. The STP model even features 4 valves per cylinder for enhanced breathing and top end performance.

Lower fuel consumption and lower NOx emissions Normally, when NOx emissions are reduced, the fuel consumption and smoke generation will increase, adversely affecting both the environment and management. As a solution to this, YANMAR has developed "EcoDiesel SAVETEN", which is designed so as to comply with marine environmental protection. The "EcoDiesel SAVETEN" employs the ASSIGN combustion system, an innovative state-of-the-art technology, and other new features.