A POWERFUL DESIGN. Twelve years after starting the four-stroke revolution, with its award winning DF70 and DF60 outboards, Suzuki has reinvented the category again with the DF90A. The first of Suzuki’s new generation of four-strokes, the DF90A is a showcase of advancements and achievements – like digital sequential electronic fuel injection, a powerful 2.59:1 final drive ratio, and a zero-maintenance self-adjusting time chain. All of this comes in addition to Suzuki’s Lean Burn Control System, and newer models also sport the optional Suzuki Troll Mode System.