Suzuki DF15AES4 Portable Outboard Motor. 15" Shaft Tiller Handle Electric Start Manual Tilt 15 HP Black. Unparalleled performance on the go.. The Suzuki DF15AES4 Portable Outboard Motor is a compact 15 horsepower four-stroke designed for boaters who want a stronger portable outboard without moving into a heavier remote-steer setup. With a 15" shaft, tiller handle control, and the convenience of electric start, this model is well suited for jon boats, aluminum fishing rigs, small skiffs, and util