Buescher's earliest racing success came in 2004 when he became a national champion in the Young Gun division of Bandolero racing at Texas Motor Speedway. He then moved on to the American Speed Association where, in 2006, he was named Most Popular Driver as well as winning the Late Model Series South championship. For 2007, James ran a part-time schedule in both the ARCA Series and the NASCAR Busch East Series. He became the youngest winner in ARCA series history when he won at USA International Speedway in his series debut. In six more races that season, he would earn an additional 5 top-10 finishes as well as finish in the top 10 in all 4 Busch East races he entered.

In 2008, Buescher signed with Braun Racing to run six races in the Nationwide Series. He made his debut at Phoenix International Raceway in the No. 32 Great Clips Toyota. He started 17th and stayed in the top 20 all race long, finishing 18th. He would earn his first top 10 at Gateway International Raceway (finishing 7th) and his first pole at Memphis Motorsports Park. He would spend most of the 2009 season in the Camping World Truck Series. Near the end of 2009, Buescher was announced as the 2010 driver for Phoenix Racing. To prepare for the season, he ran two races in the No. 1 Miccosukee Resorts Chevrolet, finishing 11th at Texas and 13th at Phoenix.

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