Yamaha has conceded that introducing a new V4 engine on its bike before the end of the 2025 MotoGP season is “unrealistic”.

Yamaha's development of a new V4 engine for its MotoGP bike is in an advanced state, Motorsport.com has learned. Yamaha has not publicly acknowledged that it is working on a change to its engine ...

Yamaha launched the 2025 R1 in Japan and is based on the facelift that was unveiled last year. The motorcycle featured small ...

Yamaha recently released the all new YZF-R1 and R1M in the Japanese market. The supersport gets minor design updates and new ...

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The Yamaha YZF R15 V4 retains the potent 155 cc with 6-Speed Transmission. The Yamaha YZF R15 V4 Engine Power is 18.1 bhp @ 10,000 rpm and the Engine Torque is 14.2 Nm @ 7,500 rpm. Yamaha YZF R15 ...

ECU tuning: Adjusting the engine control unit (ECU ... especially in the lower RPM range, can affect the Yamaha R15 V4's initial pickup. However, it's crucial to consider the overall impact ...

Jack Miller has delivered his verdict on Yamaha’s engine saga. The Australian reiterated ... They are developing a V4 which will move them in line with their rivals. “As I’ve said all ...

The new Yamaha R15 V4 gets a powerful 155cc single-cylinder, liquid-cooled, fuel-injected engine that develops 18.1hp of power and 14.2Nm of torque. Its engine is paired with a 6-speed manual gearbox.