San Marino Grand Prix poleman Maverick Vinales topped the one-day MotoGP test at Misano on Tuesday on his works Yamaha, while race winner Franco Morbidelli was absent through illness.
The paddock returned to the Misano circuit just two days after the San Marino GP for the only in-season test of 2020 as a result of COVID-19-related restrictions.
San Marino GP race winner Morbidelli was absent owing to a stomach upset, while Tech3 elected to bench Iker Lecuona as KTM felt he wasn't experienced enough to help with development work - the Austrian marque now banned from in-season testing with race riders after losing its concessions.
Split across two sessions, it was the KTM of Pol Espargaro - who had a new chassis amongst other things to test - who topped the morning outing with a 1m32.054s.
This time stood as the benchmark for much of the rest of the day, before Vinales on the factory Yamaha deposed him on the combined times 15 minutes into the final hour of the second session.
Vinales fired in a 1m31.532s not too long after he crashed going through the left-hander at Turn 6.
Yamaha had the most noticeable update, with the works team rolling out a large new exhaust for Vinales and Valentino Rossi to try in a bid to improve rideability and power.
Rossi and Vinales also had a new chassis to try, though neither reportedly found it to be much of an improvement, while also working on a new carbon swingarm.
Vinales held onto top spot as the second session came to a close, with LCR's Takaaki Nakagami trailing him 0.271 seconds adrift.
The Honda rider - who crashed this morning - was given the 2020 bike to try for the first time, while also working on improving his 2019-spec bike over Misano's vicious bumps after struggling to ninth in the race.
Johann Zarco completed the top three on his Avintia Ducati, though had a bizarre incident at the end of pitlane with just over an hour to go - with the Frenchman somehow damaging the front fairing of his GP19.
Just moments later, team-mate Tito Rabat's engine expired exiting the final corner, necessitating a brief red flag period to check the track for oil.
Pol Espargaro was fourth, with Alex Rins heading Suzuki team-mate Joan Mir in fifth, as both worked on a new swingarm - which neither were hugely convinced by.
Francesco Bagnaia only completed 26 laps in the first session before calling it a day as to not stress his broken leg too much.
The Misano podium finisher felt his bike was even better than on Sunday and headed Andrea Dovizioso, who also finished the test early, in seventh.
World championship leader Dovizioso struggled across the San Marino GP, but numerous set-up changes and new parts allowed him to make a step forward for this weekend's Emilia Romagna GP.
Fabio Quartararo (Petronas SRT) and KTM's Brad Binder completed the top 10, with Alex Marquez on the works Honda heading Pramac's Jack Miller - who had numerous technical issues across the day - and Tech3's Miguel Oliveira, who crashed in the first session.
Aprilia had numerous updates to try, including a rear holeshot device it aims to develop into the on-lap version Ducati has been racing this year.
Aleix Espargaro was 13th, with Bradley Smith 14th. Rossi was 1.4s off the pace in a low-key 17th on his Yamaha.
The majority of the field also tried the new radio warning system for the first time, with the initial reaction generally positive - though some issues had to be worked out.
Misano test session 2 results
|2||Takaaki Nakagami||LCR Honda||0.271s||31|
|3||Johann Zarco||Avintia Ducati||0.367s||39|
|7||Fabio Quartararo||Petronas Yamaha||0.804s||56|
|10||Jack Miller||Pramac Ducati||0.978s||23|
|16||Tito Rabat||Avintia Ducati||1.774s||34|
Misano test session 1 results
|3||Francesco Bagnaia||Pramac Ducati||0.153s||26|
|6||Takaaki Nakagami||LCR Honda||0.244s||45|
|8||Fabio Quartararo||Petronas Yamaha||0.299s||51|
|9||Johann Zarco||Avintia Ducati||0.391s||57|
|13||Jack Miller||Pramac Ducati||0.572s||44|
|18||Tito Rabat||Avintia Ducati||1.406s||37|