Loris Baz, who will make his BSB debut in place of the injured Andrew Pitt at Croft this weekend, tested for the Motorpoint Yamaha team at Mallory Park earlier this week.
The 17-year-old Frenchman, who usually races an R1 in the European Superstock Championship, managed 60 laps in perfect conditions around the Leicestershire circuit.
“Well that was a pretty good day at the office!" said team principal Rob Mac. "Maybe our luck is changing, the forecast was to rain all day and the sun shone on us and gave Loris a great day on the bike.
"We have all been looking forward to seeing Loris on our bike, we were confident he would settle pretty fast as he has spent a couple of seasons racing the Superstock R1. The full power Superbike with race spec chassis and brakes put a smile on his face and he cannot wait to get to Croft to get back on!
“We have a lot to look forward to this weekend at Croft, this is Dan [Linfoot's] local track and our bike should work very well, it is Loris's first time at BSB and on a Superbike so we are all keen to get the weekend started.
"This will be a baptism of fire for Loris, he knows the pace will be hot and he cannot wait to get on track.
"We want him to take things step by step and enjoy the whole experience. on the bike you would never imagine he is only 17 years old so I am sure he will get a good welcome from the North East fans."