Meet Yamaha’s award-winning V6 4.2-liter outboards. Digital: 300 hp, 250 hp, 225 hp Fusing power, efficiency, speed and light weight, their intelligent design absolutely sets the standard for offshore performance. *Weight refers to shortest shaft length, and is measured without motor oil, gearcase oil and propeller (except models 25 hp and under, which include a standard propeller).
* Cruise RPM is where most offshore outboards are typically operated, meaning you get there faster, using less fuel, than competitive models. That gives you the freedom to increase your horsepower and your displacement without replacing your rigging.Yamaha’s 4.2-liter V6 Offshore outboards feature plasma-fused sleeveless cylinder walls, which are 60 percent harder than steel. All Jet model weights include the jet pump assembly (weight estimated). * Cruise RPM is where most offshore outboards are typically operated, meaning you get there faster, using less fuel, than competitive models. *Weight refers to shortest shaft length, and is measured without motor oil, gearcase oil and propeller (except models 25 hp and under, which include a standard propeller). *Weight refers to shortest shaft length, and is measured without motor oil, gearcase oil and propeller (except models 25 hp and under, which include a standard propeller). This feature helps Yamaha’s new 4.2-liter big-bore V6 outboards deliver awesome hole shot and mid-range acceleration. The Yamaha F300 is up to 19% faster at cruise RPM than other 300-hp four-stroke outboards. With all V6 4.2L models – F300, F250 and F225 – available in both mechanical and digital control, you can step up your power, without rebooting your rigging. All Jet model weights include the jet pump assembly (weight estimated). The 4.2-liter V6's are up to 73 pounds lighter than other four strokes in their class, at 562 pounds (digitaL and 551 pounds (mechanical).Yamaha’s Variable Camshaft Timing system advances and retards the angle of the intake camshaft to dramatically increase power and throttle response in the low- and mid-RPM ranges. Yamaha F 4-stroke Outboard Motor Fuel Consumption Yamaha F 25 hp 9.45 LPH | 70 hp 2-stroke 27.5 LPH | 90 hp 34.4 LPH | 115 hp 36.6 LPH | 150 hp 58.6 LPH | 200 hp VMAX / HPDI 72.6 LPH | 250 hp 89.9 LPH | 300 hp 98.3 LPH | 350 hp 129 LPH Liters per hour | 425 hp 140 LPH Liters per hour | Portable outboard Yamaha 4 - 5 - 6 - 8 - 9.9 - 15 - 20 hp | Also Fuel usage Gallons *Testing conducted by Yamaha at Yamaha’s test facility on a Grady-White® 257 Advance, with each boat rigged for maximum performance.All Yamaha V6 4.2-liter outboards feature a proven cowling drain system, to easily and efficiently drain away any water that enters the cowling during normal engine operation. That means larger cylinder bores for increased displacement, resulting in more power and torque, without increasing outer cylinder dimensions. That impressive resume now includes the option of a 35-inch shaft and the choice of colors for the F300 DEC model – available in new pearlescent white, as well as signature Yamaha gray.Offshore V6 4.2L outboards are available with either mechanical (25" shaft) or digital controls. And now, you can add versatility to that list. At 3800 RPM, assuming propped correctly, burn rate should be under 13 GPH, somewhere near the 12 GPH. All Jet model weights include the jet pump assembly (weight estimated). mkelly From the top of the cowling to the tip of the propeller shaft, every ounce of weight-savings has been realized for maximum performance without sacrificing durability.
Yamaha Outboard Fuel Consumption chart : Yamaha 25 hp 2.50 GPH | Yamaha 50 hp 4.90 GPH | Yamaha 70 hp 2-stroke 7.30 GPH | Yamaha 90 hp 9.10 GPH | Yamaha 115 hp 9.70 GPH | Yamaha 150 hp 15.5 GPH | Yamaha 175a hp 16.3 GPH | Yamaha 200 hp VMAX / HPDI 19.2 GPH | Yamaha 225 hp 17.7 GPH | Yamaha 250 hp 23.8 GPH | Yamaha 300 hp 26.0 GPH | Yamaha 350 hp 34.1 GPH | Yamaha 425 XTO … * For maximum power and efficiency, electronically controlled throttle valves work in concert with Precision Multi-Point Fuel Injection to ensure a precise mix of air and fuel. Weighing in at only 562 pounds (digital) and 551 pounds (mechanical), it’s up to 73 pounds lighter than some competitors. The award-winning 4.2-liter F300 is the king of our V6’s. Incoming air is routed through a labyrinth of passages that trap and drain water before it enters the engine’s intake, for maximum reliability. © 2020 Yamaha Motor Corporation, U.S.A. All rights reserved. Plus, it’s up to 19 percent faster at cruise RPM*. Our 4.2-liter V6’s are up to 17 percent more fuel efficient at 3500 RPM than other four-stroke V6's. It also results in dramatically lighter weight and better cooling, and “micro-textured” cylinder walls that help decrease friction loss, and further increase performance and enhance reliability. There’s even a new advanced polymer composite lower engine pan that lowers weight and increases corrosion resistance. Seventeen percent more fuel efficient at cruise RPM*, up to 73 pounds lighter than some competitors and more than 10 years of proven Yamaha reliability. In addition, six individual sensors constantly provide vital atmospheric and engine conditions to the Engine Control Module (ECM), which makes adjustments for performance. As far as GPH is concerned, its irrelevant as to what boat the motor is pushing. It’s easy to see why it’s the top choice for offshore performance.Perfect for offshore dual or center consoles, walkarounds, runabouts and pontoons, the 4.2-liter F250 allows you to step up your horsepower and displacement without replacing your rigging.Perfect for 20-foot decks or deep-Vs, the versatile 4.2-liter F225 allows you to increase your displacement without replacing your rigging. If the motor is propped correctly to reach 5500 RPM at WOT, a 300 HPDI will burn about 10.5 to 11 GPH at 3500 RPM and about 13 to 13.5 GPH at 4000 RPM. The Yamaha F300 is up to 19% faster at cruise RPM than other 300-hp four-stroke outboards.