P1racenews AI automatic summary:
Yamaha says the 2027 MotoGP technical rules mean “it has become mandatory” to race with a V4 engine.
According to the MotoGP technical rules, engines are limited to a maximum of four cylinders with no restrictions on configuration. Yamaha and Suzuki have both won titles with Inline4 engines against V4-powered competitors. However, new aerodynamic restrictions, such as a 50mm reduction in front fairing width, have made it difficult for Yamaha to continue with the Inline4 design. As a result, Yamaha Racing is switching to V4 power for the 2027 season to comply with the new regulations and prepare for the future 850cc era. This decision was influenced by comments from Yamaha Racing boss Paolo Pavesio and team director Massimo Meregalli, who highlighted the necessity of transitioning to a V4 engine configuration. The Yamaha V4 has shown promise in recent testing with Jack Miller setting the fastest time during the Sepang Shakedown, signaling a positive start to the transition process.
