The 2020 MotoGP season was something of a schizophrenic affair for Yamaha. On the one hand, a Yamaha won 7 of the 14 MotoGP races last year, with Franco Morbidelli finishing second in the riders' championship, Yamaha finishing second in the constructors' championship, and the Petronas Yamaha SRT team ending second in the teams' standings.
On the other hand, Yamaha's most successful rider was in a satellite team on a 2019-spec bike. Of the 7 Yamaha victories last year, the factory Monster Energy Yamaha team had just a single one. Morbidelli took 5 podiums on the 2019 M1, while Maverick Viñales, Valentino Rossi, and Fabio Quartararo scored just 7 podiums combined. The first factory Yamaha in the championship – Maverick Viñales – finished in 6th, behind the Suzukis, a Ducati, a KTM, and Morbidelli on the 2019 M1.
There was the valve saga which saw Yamaha have points deducted in the constructors' championship for using non-homologated parts – switching valves between suppliers, and thereby breaking the homologation rules. And there were the brake issues at the Red Bull Ring, where the Yamaha riders insisted on using the older, smaller Brembo calipers which suffered overheating and even brake failure in the case of Viñales.