Light, Compact Power that's Head-of-the-Class.
The BF40 and BF50 are an outstanding combination of Honda's legendary four-stroke engineering and our latest outboard innovations. The result? The lightest, most compact engines in their class. And because they are from Honda, they're loaded with unparalleled features and technology.
Features such as BLAST(Boosted Low Speed Torque) - activated by a quick movement of the throttle - deliver vastly improved holeshots. Then there's Programmed Electronic Fuel Injection for easy starts, instant throttle response, variable trolling speeds (requires optional switch), and overall better fuel efficiency.

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  • Feature
  • Voltage regulation system
  • TYPE
  • Frequency
  • AC Output Maximum
  • System
  • Phase
  • Rated Voltage
  • AC Output Rate
  • Fuel Tank Capacity


BF50DK4 Specifications
Model BF50DK4
Engine type 4-stroke OHC 3-Cylinder
Displacement (cc) 808.0
Bore X stroke (mm) 70.0 x 70.0
Full throttle rpm range 5,500-6,000
Rated power [kW (HP)/rpm] 37.3 (50HP)/6,000
Cooling system Water cooled
Ignition system Full Transistorized Battery Ignition
Starting system Electric
Fuel delivery Programmed Fuel Injection
Battery charging capacity 12V-17A
Exhaust Through Hub
Gear ratio 2.08
Propeller 11-1/4x13 (Standard)
Overall dimensions (l x w x h) (mm) 694 x 390 x 1,387
Transom height (mm) L:521
Dry weight (kg: including propeller) LRTD:98, LHTD:102


  • Soft Cloth
  • AutoStart
  • DiskBreake