Valentino Rossi began life without long-serving crew chief Jeremy Burgess as the nine-time world champion linked up with Silvano Galbusera for the first time in Spain.

Rossi tested the new standard ECU that will be used in MotoGP next year and rode the 2014-spec Yamaha M1 on day one of the Valencia test.

He set the second fastest time behind team-mate Jorge Lorenzo in 1m 31.350s and afterwards reflected on his first session without the familiar figure of Burgess in his corner.

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"Today was very emotional, it was something different. We were working a long time with Jeremy so today was like a restart from the beginning but I'm happy and I'm satisfied with the day," said Rossi.

"I know Silvano already from Superbike as I did some testing in 2010 with the R1 together with him and I liked the way we worked.

"It's just the first day but anyway it was a good day for me, I was faster and we worked well on the bike."

Rossi also gave the 2014 machine the thumbs-up, praising the M1's power delivery and front-end feel.

"We worked with both bikes, I liked the new one a lot, it has good power exit from the corners and the chassis gives a good feeling on the front so the first impression is very positive," he said.

"The condition of the track and the weather were perfect so I enjoyed it a lot."