Last Updated on June 16, 2022
When did Yamaha switch to fuel injection? It‚s been a while since their last production four-stroke motocrosser, the YZ450F, was launched, but we can look back to the 1980s to see some interesting developments. Fuel injection was first mounted on the 1982 XJ750D (#1). It worked by processing data from various engine parameters and calculating the correct volume of fuel to inject based on those conditions. The new system improved fuel efficiency, engine start-up, and response. It was supplemented by a 3-way catalytic converter and an oxygen feedback control. This made the bike run cleaner and with better emissions.
Cars ruled when yamaha switched to fuel injection
In the 1990s, cars dominated the motorcycle market. However, with the rise of fuel-efficient bikes, manufacturers have begun looking at the mass market. While performance-oriented motorcycles are still popular, many people in India want bikes that are efficient. To tap into this segment, Yamaha has always been interested in the volume market. Yamaha‚s internal slogan was “Performance with Mileage”; the new slogan is “Performance with Mileage”. The word‚mileage‚ is a common way to measure kilometres, and the company may have uncovered a way to connect with the mass market.
Yamaha first incorporated the fuel injection system into its bikes in 1982 with the XJ750D (#1). This new system processed data from various engine parameters and calculated the optimum fuel volume based on engine conditions. It improved engine response, fuel efficiency, and even improved engine starts. It was later complemented with an oxygen feedback control system and a three-way catalytic converter to produce cleaner emissions.
YZ450F was a scaled-down version of the YZ450F
The YZ450F was a scale-down version of the YZ450, but the overall layout and performance are still the same. The engine has been refined to deliver better usability and power, despite its smaller size. The key points of this usability are the responsiveness of the engine to the rider‚s inputs and the characteristics of its output as it reacts to them. The chassis and engine are also optimized to provide the best possible grip.
The chassis and suspension of the YZ450F were updated in 2006 with over 300 parts changing. The new chassis was easier to ride and the transmission was changed to a conventional five-speed. The YZ450F‚s frame was also made of aluminum instead of a traditional one, reducing the overall weight by ten pounds. KYB SSS forks were also added in 2006, and the engine received some minor modifications for the 2007 model.
The YZ450F retained the reverse cylinder, and the battery was located under the seat. The seat also had a battery box that did not interfere with the air flow into the filter. The rider compartment also saw some changes, such as moving the steering head further forward. The seat was also made slightly lower, and the bodywork was entirely new. The KYB coil-spring fork was also retained.
Despite its name, the YZ450F was a scale-down version of the YZ450. Although it had the same basic chassis numbers as the YZ250F, it was a much better bike than the 2014 model. And Yamaha has signed motocross riders Weston Peick and Justin Barcia to factory contracts. With a little more time, we‚ll see if the YZ450F will become a top-selling model for Yamaha.
The YZ450F is a scaled-down version of the popular YZ450F. It is a four-stroke motorcycle with a rear-inclined cylinder set in a bilateral frame. Its performance is comparable to that of its 250 cc two-stroke counterpart. And it weighs considerably less than the YZ450F.
YZF-R7
The Yamaha YZF-R7, a race homologation motorcycle, is one of the most advanced two-strokes in the world. With a 689cc DOHC liquid-cooled parallel twin engine and four valves per cylinder, the R7 delivers an outstanding balance between power and approachability. Its streamlined design and aggressive aerodynamics give it a confident character that will inspire confidence in riders and drivers alike.
The YZF-R7‚s frame is ultra-narrow and light, contributing to its low 414-pound curb weight. Its chassis is made from high-strength steel tubing, while the engine displaces a section of the frame. The YZF-R7‚s stand-alone design incorporates the iconic R-Series styling of the YZF-R1 and a single bi-functional LED headlight mounted in the center of the M-shaped air duct.
The YZF-R7 features an inverted 41mm front fork and linked-type Monocross single-shock. The engine features optimized spring rate and damping settings for optimal front-end feel. Its fully adjustable shock unit and full LCD instrument panel will provide riders with the ability to customize the bike‚s handling. They can even use the Yamaha YZF-R7‚s throttle and brake pedals to control throttle response.
The R7‚s engine is a competition model, and it featured the same five-valve per-cylinder arrangement found in the Rl. It also shared the Rl‚s one-piece cylinder-and-crankcase design and titanium internals. The chassis was black, with a hint at the 500cc GP racers it emulated. With its aggressive styling, the R7 was destined to be a racer.
YZF-R7 was a production four-stroke motocrosser
In 2002, the YZF-R7 was positioned as a production four-stroke motocross machine. Unlike earlier models, this bike had a carbon fiber frame, a more compact engine and electronic fuel injection. When Yamaha switched to fuel injection, the YZF-R7 featured a higher compression ratio and a more powerful engine. In the first two model years, the top speed remained stable at around 157 mph.
The YZF-R7 was resurrected in 2022 as a supersport model. It has a 689 cc engine and a lightweight frame. It will be released in the United States, Europe and Japan domestically. It was a hit with motocross riders. However, despite its popularity, the YZF-R7 was a popular bike for Yamaha‚s factory team.
The YZF-R7 is the first Yamaha motocross bike to feature fuel injection. The YZF-R7 was the first production four-stroke motocross bike to have this new technology. The YZF-R7‚s CP2 engine was developed for Yamaha‚s R World program, and was based on the company‚s own development process. It was introduced to the world in 1999. Its production was limited to 500 units.
YZF-R7 featured a race-style cockpit and a slim, racing-inspired seat. It also featured the iconic R-Series M-shaped intake duct. Its sleek design complimented the slim fuel tank and its compact clip-on handlebar position. It featured LED elements for the tail light unit and front and rear turn signals.
The YZF-R7 was the first production four-stroke motocrosser to feature fuel injection. Its high compression ratio made it possible to reduce the cost of modification and allow privateer teams to compete. Yamaha was so impressed with the initial performance of the YZF-R7 that they quickly made the bike available for production.
The YZF-R7 was conceived as the first production four-stroke motocrosser when Yamaha switched to fuel injection. Its 450cc liquid-cooled four-stroke engine had a cylinder head design that optimized weight distribution. Yamaha aimed to provide the best unsprung weight distribution while retaining a rigid and precise handling character.
About The Author
Gauthier Daniau is a freelance problem solver. He first discovered his knack for trouble-shooting when he was still in diapers - and hasn't looked back since. When he's not slaying zombies or internet ninjas, GAUTHIER enjoys working with animals of all shapes and sizes. He's also something of a social media expert and loves to get lost in numbers and figures.