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INDUSTRY-DOMINATING 4-STROKE ENGINE TECHNOLOGY.
It isn’t something you buy from a vendor. It’s developed by a highly skilled team of engineers with over 50 years of engine-building experience. Yamaha’s engine department has developed a new, high-tech and reliable 4-stroke snowmobile engine for five out of the past six years. That’s an engineering track record nobody in the sport has been able to match. Yamaha engineers are dedicated to developing the best-performing, most-reliable and lowest-emission, lightweight engine packages in the industry. The new Genesis 130FI triple is the latest fast-revving, high-torque powerplant to hit the snow. It shares the same advanced fuel injection system as its 80 and 150 horsepower-class cousins, giving you razor-sharp throttle response, excellent fuel economy and dependable cold starting. Industry-leading technology isn’t something you outsource, it comes from within. Yamaha Motor Corporation delivers the very best engines in the sport… and they’re 4-strokes!

GENESIS 150FI
The high-performance 150hp-class Genesis 150FI engine is built with exotic materials and Yamaha’s high-tech manufacturing processes to be lightweight, durable and highly potent. The lightweight crank design and advanced fuel injection system give this engine right-now performance. Its broad power curve is easy to clutch and it delivers excellent acceleration out of a backshift.

Models:
Apex® RTX | Apex LTX GT | Apex LTX
Apex MTX SE | Apex MTX | Apex GT

GENESIS 130FI
The new fast-revving, high-torque, 130hp-class Genesis 130FI boasts a sizable performance gain over the Genesis 120. That gain can be credited to a slightly larger displacement, 1050cc 3-cylinder design and the introduction of Yamaha’s advanced fuel injection technology. The Genesis 130FI uses lightweight crank technology and the fuel injection system to deliver razor-sharp throttle response. It also features a new Engine Braking Reduction System to give riders some “coast” feeling when the throttle is released.

Models:
FX Nytro® RTX | FX Nytro | FX Nytro MTX

GENESIS 120
The smooth-running 120hp-class Genesis 120 triple has proven itself one of the most reliable engines in all of the sport. Its broad power curve and excellent fuel economy have earned the engine a strong following among high-mileage enthusiasts. Competitive 2-stroke engines fall off as soon as they achieve their peak horsepower. As you can see from the dyno chart, the Genesis 120 keeps pulling hard once it gets into the peak performance zone.

Models:
RS Vector® LTX | RS Vector GT | RS Vector
RS Venture® GT | RS Venture

GENESIS 80FI
The lightweight, sporty 80hp-class Genesis 80FI powers the fun Phazer sleds. Its high-tech, fuel injection system gathers and analyzes data about the ambient conditions as well as from the engine to maintain optimum fuel flow. The fuel injection, combined with the Genesis 80FI’s lightweight, counterbalanced crank, gives it razor-sharp throttle response. A knock sensor helps protect the engine when you can’t find 91 octane fuel.

Models:
Phazer® RTX | Phazer | Phazer MTX | Phazer GT | Venture Lite