Jorge Lorenzo says he is ready to delay a decision on his future, claiming he is worth more than what his Yamaha team is offering him.
The Spaniard is currently fighting for the title with team-mate Valentino Rossi, who is 14 points ahead after the first nine races of the season.
Yamaha rival Honda has expressed an interest in Lorenzo, but the former 250cc world champion said his main priority is staying with his current team.
Lorenzo, however, said after yesterday's German Grand Prix that he feels Yamaha's offer is not good enough.
"I don't know, I think that we need to wait some more," Lorenzo told Italia1 television when asked about his future.
"I feel very proud that people are interested in me. But I think I'm one of the riders who can beat Valentino in the future.
"I'm fighting with him at the moment, and I think my worth is greater than what Yamaha is offering me at the moment. We'll see what happens in the future."
Rossi, meanwhile, said he was not sure if it was better to have Lorenzo as a team-mate or not.
"I've thought a lot about it, whether it's better to have him in Yamaha or in Honda," he said. "I don't know. There are pluses and minuses each way. In any case I think he will be a tough rival to beat whether he rides either with our bike or with another team."
Rossi also denied Lorenzo did not get the same bike upgrades as him.
"That's not true, the bikes are identical," he told Gazzetta dello Sport. "In any case, it's normal that I have with Yamaha a relationship he doesn't have: when I arrived in 2004 I found a bike that hadn't won for 12 years and it was crap.
"Now we have the best bike. Lorenzo can't pretend to arrive, win, and in two years be as important as Valentino."
He added: "It's easy to be in his conditions: he fights against Valentino Rossi, one of the strongest riders ever, so he goes for it and if he loses he tries again. Meanwhile, this year we are 6-3 in my favour. Good, I like that. He's a tough nut with enormous talent."