OUTSMART THE DISTANCE. The Suzuki DF2.5 portable outboard is the most compact, and portable, Suzuki four-stroke to date. Weighing just 30 pounds, the DF2.5 is the lightest motor in its class. Additionally, the DF2.5 meets the rigorous EPA 2010 and CARB 3-Star Ultra-Low Emissions standards. This engine hosts a 2.5 HP single cylinder OHV four-stroke engine, with 4.15 cu. in. displacement. This model generates plenty of power for small tenders and inflatables, and features easy-to-pull recoil starting with the Suzuki Pointless Electronic Ignition. The DF2.5 requires no battery, but remains remarkably simple and reliable.