Yamaha has struggled for power to match its rivals for the last few years in MotoGP, which has contributed to its slide down the pecking order.

For 2023, it began working with former Ferrari F1 engine chief Marmorini to improve in this area, though that collaboration was geared more towards the 2024 season.

Running the new engine on Monday at Misano’s post-San Marino Grand Prix test, 2021 MotoGP champion Quartararo was sixth overall on the timesheets – though was still some 5km/h down on the fastest Ducati through the speed traps.

Asked by Motorsport.com what his impressions of the engine were, Quartararo responded: “I tested it and the feeling was… I expected much better from this test, but we have to stay positive and try to analyse what happened to improve for [the] Valencia test.”

When pressed for more information on the characteristics of the engine, Quartararo added: “I cannot say right now. I need to test it more, but like I said I expected better.

“The feeling is different, but I think I expected more power and [it] was a little bit difficult to say something positive about this engine.”

At the same test one year ago, Quartararo was much more enthusiastic about the 2023 engine he tried at the time, and admits he didn’t get the same feelings today.