Yamaha Genesis Bikes

Genesis Engine

The Yamaha Genesis engine first appeared on the 1984 Yamaha FZ750 and was then used on different bikes for different types of markets. The design was used for parallel twins (such as TDM and TRX) and for four-cylinder models. The four and the twins had the cylinder block tilted forward 45 degrees. The Genesis engine has also been used in the Yamaha YZF-R1, FZX700, FZ750 and FZ700, which are only located in the United States.

Other applications ranged from the Supersport YZF-R6 and YZF-R1 models that used electronic fuel injection with YCCT and YCCI to the less extreme but still powerful Yamaha FZ6 (4 valves per cylinder) and the FZ1 Fazer line, which had a simpler fuel injection design but was pretty much the same basic engine design.

The main changes were 4 valves per cylinder configuration and cruiser crank shaft found on YZF-R1 2009, as well as modifying the steel cylinder sleeves for high accuracy and durability at high temperature. During the long production period, the Genesis series provided performance and reliability.

Due to its high-performance capacity (usually 100 HP - 350 HP), the engine has also been used in various other applications such as gyroplans and powerful marine engines, making it an affordable solution for high quality applications. The engine is also used in a racing car championship in Norway called SevenRacing. This is a super seven lotus replica, and is produced by MK and Stuart Taylor.

The DOHC Genesis engine has five valves per cylinder and downdraft carburetors. Yamaha adopted the 5-valve concept using three input valves and two exhaust valves per cylinder, as it allowed both excellent volumetric efficiency and high speed. When designers began to appreciate the benefits of multi-valve layout, 4 valves per cylinder (and even 3 valves) became commonplace.

In a multi-val engine, the maximum speed is limited by the size of the larger valves: with a valve 3, the socket is larger, and with a valve of 4, the entrance valves are larger. The importance of the five-valve engine compared to other multi-purpose engines is that (like a valve 3) there were more input valves than exhaust gas; but all the valves were small and of very similar size and weight.

Downdraft carburetors were used for better fuel circulation, but for motorcycles one drawback was that the intake air cabinet was above the engine and took up the fuel tank space, rather than being traditionally placed behind the engine.

Yamaha Genesis Bikes List

Yamaha FZR400R
Yamaha YZF-750R
Yamaha FZ250 Phazer
Yamaha FZ750
Yamaha FZ600

Yamaha FZR400R

Perhaps This FZR400 is the most popular at the beginning of the FAZER genealogy.
The FZ400R was made with the aim of regaining the delay in the 4th water-cooled 400 super sports (racer replicas) at that time, and appeared in the ugly phrase of joint development with the TT-F3 FZR400 (pure racer).

Yamaha FZR400R Genesis

By the way, this FZR400 brilliantly won the first TT-F3 champion.
The biggest front fairing and the flowing seat cowl are the most obvious twins with the FZR400.

Yamaha YZF-750R

Yamaha has traditionally been racing around the World GP with two strike machines. However, at the same time when the FZ750, the first full-fledged 4-stroke supersport, was released in 1985, the TT-F1 class that was fighting with a large remodeling machine based on the commercial 750mm supersports that was popular at that time.

Yamaha FZ250 Phazer

It was FZ250 Phazer that broke through the shell and took a big step in performance. The spec that generated 45PS, which is the upper limit of the class at that time, at an ultra-high speed of 14500rpm, clearly pursued performance and running.

Yamaha FZ250 Phazer Genesis

After the two-stroke 250cc replicas and the 400cc four-cylinders have settled, the spot begins to hit the 4-stroke 250cc 4-cylinder model.

Yamaha FZR250 Genesis

In 1988 Yamaha Manufactured a Sport bike model, Listed as Yamaha FZR250. This sportbike has 250cc Engine Four Stroke In line 4, this engine gained 45 HP (32.8 kW) @14500 RPM Horsepower and 25.00 Nm @11500 RPM Max Torque. Yamaha FZR250 can reach 180 Km/H or 111.8 Mph Top speed by the engine specification that mentioned above.