This guy spent 700 hours to build a working gasoline engine | Science, Tech and Universe

The newest engine to hit the industry. We're proud to be the first to offer the Yamaha V-Twin EFI engine. Learn more: http://bit.ly/2dBnxq2 Yamaha is launching two engine models on Gravely product this year, including the Yamaha MX775 V-Twin EFI 29-horsepower engine and the Yamaha MX825 V-Twin EFI 33-horsepower engine. More models will be available in the coming years, with the potential of Gravely expanding its Yamaha offerings to more machines in 2018. Available immediately, the new Yamaha EFI

Electric motors are all around us, powering everything from remote control toy cars to full-sized electric vehicles. This week on #ElectrifyingEngineering you and your future innovators will learn how electric motors work and how you can build one together at home. Tune in at https://s.gm.com/kyvj9, and be sure to share your finished motors using the #ElectrifyingEngineering hashtag! | General Motors