A difficult Malaysian Grand Prix weekend so far continued for Monster Yamaha Tech 3 team-mates Colin Edwards and James Toseland in Saturday's qualifying session.

Edwards - who had complained about poor engine performance on Friday - will start from ninth on the grid, and admitted he may be as much to blame as the bike.

"With the feeling I had with the bike, that was about as fast as I could go today. Being honest though I struggled a little bit today and I'm obviously doing something consistently wrong," he said.

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"I'm losing the same amount of time in the same sections over and over again, but when we change the bike we improve in one area and sacrifice feel in another. I can't get the bike turned in at all and I've always thought I've been good at that.

"At least I'm in front of Dovizioso on the grid, so hopefully I can take some more points out of him tomorrow and have a really good crack at fifth in the championship in Valencia," added the Texan, who will start the race seven points behind the Repsol Honda rider.

Toseland will line-up for his penultimate race in MotoGP from the back row of the grid in 16th place, ahead of only rookie Gabor Talmacsi, after chronic rear grip troubles around a circuit he has never excelled at.

"This has always been a tough track for me and I wasn't expecting an easy weekend, but I wasn't expecting it to be as tough as this," confessed the Englishman, who suffered a huge accident at Sepang in pre-season testing. "I'm struggling to get grip on the edge of the rear tyre to give me the confidence to push harder.

"We've tried a lot of different options to try and improve the setting but it doesn't seem to matter what we change, I don't have enough grip on the rear. It is a problem mid-corner and also when I first open the throttle.

"Tomorrow is going to be tough with the heat, but we might just have to gamble with a setting for the race and see what happens. Being so far back on the grid means it will be difficult, but I never give up and I'll be giving it my all," he insisted.