The first MotoGP test of 2010 finished with reigning seven time world champion Valentino Rossi maintaining his place on top of the Sepang timesheets for the second day in succession.
The final day of testing began late due to rain, then effectively finished one hour earlier than scheduled when rain returned at 5pm.
In between the showers, Rossi - the last rider out on track at 1.15pm - managed to beat his Thursday best by 0.486sec, during his 32 Friday laps of the Malaysian Grand Prix circuit.
"After yesterday this second day has been very good as well, even though we lost a few hours to the rain, and the end we were still able to finish all our work,” said the Fiat Yamaha rider.
“We worked on the new bike to find a better setting and I was happy to be the fastest overall - even though this is just testing this is important for me!
“At the next test we will have a few more new things but we're already happy because we're fast and strong.
“There is room to improve of course; Sepang is always a good track for the Yamaha so we will have to wait until Qatar to get a better understanding of our level, but we have made a great start,” he underlined.
Rossi's pace was enough to keep Ducati's Casey Stoner in second place, where he had also been on day one, although the 2007 world champion gained a little ground on Rossi by closing to within 0.395sec.
Third fastest was Rossi's team-mate and 2009 title runner-up Jorge Lorenzo, who led the way earlier in the day before finishing 0.755sec behind The Doctor.
The fourth and final rider within one second of Rossi was the fourth of the MotoGP 'big four' - Repsol Honda's Dani Pedrosa - who progressed up the order from eighth on day one to lead the RCV challenge. The Spaniard worked mainly on the rear of his bike, including testing swingarms.