Suzuki DF25AES4 Portable Outboard Motor. 15" Shaft Tiller Handle Electric Start Manual Tilt 25 HP Black. A Four Stroke Of Genius. The Suzuki DF25AES4 Portable Outboard Motor is aimed at boaters who need real small-boat performance in a package that still stays relatively simple and direct. With 25 horsepower, a 15" shaft, tiller handle steering, and electric start, this model fits lightweight fishing boats, utility hulls, and compact skiffs that need stronger acceleration and better load-carryin