Yamaha “confident” in MotoGP engine reliability for 2021

The Japanese marque suffered mechanical problems on several of its engines across the Jerez weekends in July, with Valentino Rossi, Maverick Vinales and Franco Morbidelli all losing units to problems.
It transpired the issues were related to a faulty batch of valves, which proved to be non-homologated parts and led to Yamaha being docked constructors’ championship points, while it had to …Keep reading