This manual covers the 2010 Evinrude E-TEC outboard engines, including models with 40, 50, 60, 65, 75, and 90 horsepower. These engines are available in 52.7 cubic inch (0.86 L) 2-cylinder configurations and 79 cubic inch (1.29 L) 3-cylinder configurations. The E-TEC series is known for its advanced technology and reliable performance, designed for a wide range of boating applications. This comprehensive guide ensures you have the information necessary to keep your Evinrude E-TEC operating at peak efficiency. The purpose of this manual is to provide detailed instructions for the maintenance, repair, and troubleshooting of your 2010 Evinrude E-TEC outboard engine. It includes routine service procedures, engine cover service, information on the Engine Management Module (EMM), system analysis, electrical and ignition systems, fuel, oiling, and cooling systems, as well as powerhead, midsection, and gearcase service. Additionally, it covers trim and tilt, manual and electric starters, safety guidelines, and a troubleshooting guide with diagrams and specifications. This resource is designed for owners, mechanics, and technicians to effectively maintain and repair these specific Evinrude E-TEC models.