"Lap times from the race simulation this afternoon. In the last 5 laps came the hammer!!" - Reigning MotoGP champ Jorge Lorenzo fires a warning shot by setting his best race simulation laps at the end of a long run.

"10 laps were enough to understand the M1 is my bike. Today was a big relief" - Seven time MotoGP champion Valentino Rossi back on form after two poor seasons at Ducati.

"I feel confident, not only because of the position but also the feeling with the bike" - 2012 title runner-up Dani Pedrosa tops all three days at Sepang.

"I thought that I would take a little longer to get back 'on it', but right from the opening laps I felt very comfortable on the bike" - Rookie sensation Marc Marquez surprises himself with his speed and consistency.

"I like Marquez's attitude a lot because in his mind, looking at him today, it looks like he wants to win the championship at the first try" - Valentino Rossi praises the reigning Moto2 champion.

"I'll be sore tomorrow and after three days I'll be walking like John Wayne" - Monster Yamaha Tech 3 rookie Bradley Smith puts in the hard yards at Sepang.

"It is clear looking at the top of the timesheets that it is going to be a fantastic season in MotoGP. I think any of us that finished in the top seven today will have a shot at winning a race and I think the fans are going to be treated to some fantastic racing" - Smith's team-mate Cal Crutchlow predicts a tight season after a close first day of testing.

"Nice to get on the bike again! Shoulder quickly reminded me that I got to keep a leash on it tho!" - Ben Spies Tweeting that his return to fitness won't happen overnight.

"We need some help, a couple of clicks of rebound and a bit of pre-load off the front is not going to be two-seconds!" - Nicky Hayden makes clear that set-up changes alone will not make the 2013 Desmosedici competitive.

"Unfortunately, we need time to try something big" - Team-mate Andrea Dovizioso knows new parts won't appear overnight.

"I got some sleeping issues this night so I had to start a little bit later..." - Stefan Bradl makes a late start on day two.

"Hopefully we can get what they've got now, but whether it's going to happen, I really don't know" - Cal Crutchlow has his fingers crossed that some factory parts will be sent Tech 3's way.

"I'm really happy. You always aim high, but to finish as the second CRT is well above expectation. We're coming good, and still improving every time we go out on track. It's perfect!" - PBM's Michael Laverty finishes as second-quickest CRT on the final day of his MotoGP test debut.

"In this moment it's impossible to go fast. Too much chatter" - Hector Barbera getting bad vibrations from his Avintia FTR-Kawasaki.

"What's the next question?" - Forward Racing's Colin Edwards on the below par performance of the new standard ECU package.