[4] In 1971, Yoshimura made the decision to move his company to the United States to take advantage of the burgeoning American motorcycle market.

[2] This created a rift between the two men; however, within a year Yoshimura had returned to Japan and sought Moriwaki for help after he had been cheated out of all his money in a business transaction in America.

[2] Yoshimura would go on to establish one of the premier manufacturers of motorcycle high performance parts in the United States and became closely associated with the Suzuki racing program.

[1] Gardner and John Pace qualified their Moriwaki Kawasaki on pole position at the 1981 Suzuka 8 Hours, once again beating all the major factory racing teams.

[11][12] Gardner then rode the Moriwaki Kawasaki to an impressive fourth-place finish at the 1981 Daytona Superbike race behind Yoshimura Suzuki riders Crosby, Wes Cooley and Honda's Freddie Spencer.

[6] Gardner entered the final race of the season with a chance to win the title but, an engine misfire relegated him to third place overall in the championship.

[3][14] The firm gained valuable knowledge from this experience and in 2010, a Moriwaki-framed machine run by Gresini Racing took the inaugural Moto2 title with rider Toni Elias.

[2][15][16] On the MD600, Elias won 7 races with the bike and secured the championship with a fourth place at the Malaysian Grand Prix, held at Sepang.