After dominating the first two days of Sepang preseason tests, both Rossi and Vinales had trouble in speed on the final day. The Doctor occupies the eighth position, while the Spaniard was in 18th position.
"I think it could be faster (from the day before) and in reality we are more trouble. We have to identify the problem. We do not know what has happened, "said Rossi.
Vinales is very disappointed, even to stop the racing simulation, said: "I decided to stop, my lap time records do not match their expectations."
This comes after Vinales signed a new two-year deal, which will keep him at Yamaha until 2020. And a similar extension - at least for another year - is expected to be signed by Rossi in the next few weeks.
Despite the fact that Vinales was the first driver to renew his contract, Yamaha has apparently been focused on finding solutions to problems at Sepang, especially based on feedback from Rossi.
In fact, in the team there is no problem in recognizing Rossi's experience, a figure who has won seven premier class titles, making him an established authority in terms of YZR-M1 development.
"It's true that every racer has a driving style and needs some material. But our motorcycle can only be driven in one way and if the base is good, both will be happy. "