World Superbike legend Noriyuki Haga made his Swan Yamaha BSB debut during testing at Cartagena and then Almeria in Spain.
He triple WSBK title runner-up completed his first R1 laps since 2008 during the Cartagena shakedown, before he and reigning BSB champion team-mate Tommy Hill moved on to Almeria.
"[Tuesday] was our final day and we had just an hour on track for testing and we got some good feedback on the front, but we had the same [lack of] feeling with the rear tyre again and we still need to do some more work on the setting,” said Haga.
“My five days of testing with the Swan Yamaha team have been positive as we have some good data that we have been working with and we can also now look at the direction for the next test where we will try a different setting.”
Haga and Hill will next be on track at Snetterton later this month.
“I hope at the next test we can work well again and we will focus on the rear tyre and bike balance. I always like to make big changes with the bike!” said Haga. “I am looking forward to seeing what we can produce at the next test."
Team owner Shaun Muir added: "I am really pleased with how well Nori has adapted to a new team, bike and tracks. We are now looking forward to our final tests in the UK so we are set to kick the season off in style at Brands Hatch over the Easter weekend."
The opening round of the 2012 BSB season, the first event to feature control ECUs and a ban on traction control, takes place at Brands Hatch from April 6-9.