Jack returned from a three day training camp with 26 of Britain's top young riders and declared himself fit and raring to go.
The event organized by British Under-23 Team Manager Neil Vatcher took place on the Isle Of Wight at the pacey Smallbrook circuit.
Two days of track time under the supervision of the experienced Paul Hurry and Belle Vue Ace Stevie Worrall, and sandwiched in between a day spent off the bike focusing on fitness nutrition and bike set ups and media training.
The track days where an ideal way to blow the cobwebs away and test bikes ahead of the new season which is now just a few weeks away.
Jack was quickly on the pace and showed his delight at being back on the bike after a winter of in activity as he hooked up with his new Sheffield Tigers team mate and fellow Yorkshireman Josh Bates.
Josh who was crowned Under 21 British Champion for the second time last April in a meeting in which Jack shocked the speedway world by becoming the youngest ever rider to qualify for the Grand Final.
Despite that Jack has failed to be seeded and now must qualify for this years Final via a tricky semi final at Peterborough on 11 April with the Final being staged at Poole.
Jack said "Its been great to be back on the bike it was an amazing few days, I'd like to thank Neil and Jackie Vatcher, Stevie Worall, Paul Hurry, Barry Bishop and all the trackstaff and people who gave their time up and make this all happen.
I'm buzzing and can't wait for the new season to start.
I've learnt alot this week and it's been great to spend some time with my mates.
I'm looking forward to riding for my parent club Sheffield and going back to Birmingham, and I also want to get to the Under 21 Final at Poole. I rode there a couple of years ago on a 250 and loved the track.
But first I have to qualify at Peterborough, a track I've only ridden once before, but my target is to qualify and go one better than last year grab a rostrum place."