DF2.5

The Suzuki DF2.5 portable outboard is the smallest Suzuki 4-stroke to date. Weighing just 30 pounds, the DF2.5 is the lightest Suzuki 4-stroke motor ever built. Suzuki is also proud to note that the DF2.5 meets the rigorous EPA 2010 and CARB 3-Star Ultra Low emissions standards. A 2.5 HP single cylinder OHV 4-stroke engine, with 4.15 cu. in. displacement, generates plenty of power for small tenders and inflatables. It features easy-to-pull recoil starting with Suzuki Pointless Electronic Ignition. No battery is required for this remarkably simple and reliable system.

Recommended Transom Height (inches) S: 15
Starting System Manual
Weight LBS S: 29
Engine Type DOV 2-Valve
Fuel Delivery System Carburetor
No. Of Cylinders 1
Piston Displacement inches (cc) 4.1 (68)
Bore X Stroke Inches (mm) 1.89 x 1.50 (48 x 38)
Maximum Output HP 2.5
Operating Range (RPM) 5250 – 5750
Steering Tiller
Choke Manual
Oil Pan Capacity quarts (liter) .32 (.3)
Ignition System Digital CDI
Alternator N/A
Trim Position 4 Tilt Pin Positions
Gear Ratio 2.15:1
Standard Propeller 3 x 7.5 x 5.5
Propeller Selection N/A
  • Digital CDI
  • Suzuki Anti-Corrosion System

Advantages

Model Name: DF2.5 2 Honda 2.5 Mercury Yamaha 2.5
Manufacturer: Suzuki Honda Mercury Yamaha
Horsepower: 2.5 2 2.5 2.5
Shaft Length (Inches): S(15) S (15), L (20) S (15) S (15)
Weight (Lbs): S (30.1) S (27), L (20) S (38) S (37)
Cylinders: 1 1 1 1
Valves Per Cylinder: 2 2 2 2
Valve Train Drive: Pushrod Cam Pushrod Cam Pushrod Cam Pushrod Cam
Displacement: 4.2 cu. in. (68 cc) 3.4 cu. in. (57 cc) 5.2 cu. in. (85 cc) 4.4 cu. in. (72 cc)
Bore and Stroke (Inches/mm): 1.89 x 1.50 in. (48 x 38 mm) 1.8 x 1.4 in. (45 x 36 mm) 2.16 x 1.42 in. (53 x 36 mm) 2.13 x 1.24 in. (54 x 31. 5 mm)
Operating Range (RPM): 5250-5750 5000 – 6000 5000 – 6000 5250 -5750
Induction System: 1 carb 1 carb 1 carb 1 carb
Starting System: Manual start w/ manual choke Manual Manual Manual
Lubrication: Wet sump Wet sump Wet sump Splash
Oil Tank Capacity: 0.32 qt. (0.3 lit.) 0.42 qt. (0.4 lit.) Unknown 0.35 qt. (0.33 lit.)
Ignition: Suzuki PEI Transistorized CDI TCI
Trim Type: 4 positions Unknown 4 positions 4 positions
Gear Ratio: 2.15:1 2.11:1 2.15:1 2.08:1 / 13:27
CARB Emissions Rating: 3-Star Ultra-Low 3-Star Ultra Low 3-Star Ultra Low 2-Star Very Low
Standard Propeller (Blades x Dia. x Pitches (Ins.)): 3 X 7½ X 5½ 3 x 7¼ x 7½ plastic Unknown 3 x 7¼ x 6
Steering: 360°, Tiller 360° 360° 360°

DF2.5 Advantages

Over Honda
  • 4.2 cu. in. vs. 3.4 cu. in. No replacement for displacement.
  • Water cooled vs. Air cooled
  • .4 gal (1.5 lit) vs .26 (1 lit.) Integral tank holds more fuel so you can run farther.
Over Mercury
  • 30 lbs. vs. 38lbs. Lightweight, compact design, better power to weight ratio.
Over Yamaha
  • 30 lbs. vs. 37lbs. Lightweight, compact design, better power to weight ratio.
  • .4 gal (1.5 lit) vs .26 (1 lit.) Integral tank holds more fuel so you can run farther.
  • 3 Star vs. 2 Star