Leon Camier endured a trying first day of practice at Aragon as he and his MV Agusta World Superbike team adjusted to a new Magneti Marelli electronics package.

Continued problems left Camier stranded in pit lane for much of Friday morning's session while he didn't fare much better in the afternoon. The 28-year old clocked just three flying laps throughout the day.

"We're having problems with the whole new electronics package," he told Crash.net on Friday. "The team did a test in Italy with a test rider and everything went fine. They thought when they came here they would have it under control and ready to start. I would have it adjusted to what I want, to have the bike working at a normal level and I would have to understand it.

There are a lot more options with the new electronics. A lot more. They thought we'd be starting around fifty percent of what it is capable of. At the minute we've just been struggling to get it working. I did one lap this [Friday] morning then I did two full laps this afternoon just riding around. It's not ideal at the minute but they're working hard and they're pulling in a few resources to try and make the thing work.

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There's a lot of things that I don't know to be honest. It's more to do with fuelling and other stuff. I don't know why they can't understand what it is. It's a whole new system for them to understand. It's the same as Suzuki, they've been finding it hard."

Camier recognises part of the problem stems from a lack of testing time. Unlike the factory backed Ducati team, Camier was unable to experiment with the system after the second round of the series. Now the testing ban has kicked in for World Superbike teams all experimenting will have to be done at race meetings.

"The difficult thing is everything comes straight from Thailand to here so we haven't had the bike to test. The rules are now I can't test. So we're really on the back foot for sure. Assen being next weekend isn't the optimal situation either. We've got to really call in some help. Maybe Magneti Marelli can help point us in the right direction."

Despite his problems Camier still managed to clock the 19th fastest time of the day, 3.7 seconds down on Jonathan Rea's best lap.