Zaloudek's Marine Honda Engines - Mid-Range 25HP  - A lightweight powerhouse

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Performance and Efficiency

  • 4-Stroke Design
  • Increased Displacement for More Power - The BF25 has the largest displacement in its class, at 552 cc (33.7 cubic inches), providing more torque in midrange operation.
  • 3 to 3 Induction - 3 to 3 induction provides smooth, quiet operation, along with instant throttle response and performance. A compact 3-cylinder, 3-carburetor design utilizes one carburetor per cylinder. This design is more responsive than competitive throttle bodies with long intake runners.
  • PGM Ignition - A reliable microprocessor accurately controls ignition timing during start-up and across the entire RPM range, providing optimum overall operation.
  • Auto Start Enrichment
  • Non-Linear Mounting System
  • 3 Inlet Cooling - Provides plenty of water to maintain optimum engine temperature in all conditions.
Zaloudek's Marine Honda Engines Mid-Range 25HP 

Reliability and Durability

  • 4-Front Corrosion Protection
  • Engine Alert System - Audio and visual cues combine with RPM reduction circuits to alert the operator of overheating, low oil PSI, and over-revving to prevent engine damage.
  • Forced Air Ventilation - A unique air intake on the top of the cowl allows cooler air to enter and warmer air to escape. The ventilation system reduces under-the-hood operating temperature, improving performance and long-term durability of the electrical components.
  • Positive Lubrication - A crankshaft-driven, automotive-style trochoid oil pump ensures long-term durability of critical engine components.
  • Ultra Low 3 Star CARB Emissions
  • True 5 Warranty


Convenience and Ease of Use

  • Center Mount Tiller
  • Regulated Charging System - A rectifier/regulator is standard on both manual and electric-start models. On manual models, you have the convenience of 4 Amps to charge the battery, and on electric-start models, a high-output 10 Amp system.
  • Gas Assist Tilt - Acting much like a pressure strut on a car's trunk lid, the gas-filled cylinder makes it easy to tilt the engine for running in shallow water, or to raise it completely out of the water for protection.
  • Power Trim/Tilt
  • Easy Maintenance - The port-mounted oil filter and oil fillers simplify maintenance. Easy "screw-type" valve adjusters require no shims, reducing maintenance costs.
  • Built-In Pitot Tube - A built-in pitot tube in the gear case eliminates the need to drill holes in your boat for installation.
  • Forward Mounted Shift Lever - Provides easy access to the forward-mounted controls.
  • Available in 15 and 20 inch shaft models

Zaloudek's Marine Honda Engines Mid-Range 25HP


Zaloudek's Marine Honda Engines Mid-Range 25HP


Zaloudek's Marine Honda Engines Mid-Range 25HP



Type 4-Stroke SOHC, 3 Cylinder/2 Valves/Cyl.
Displacement 552 cc (33.7 cubic inches)
Bore & Stroke 61 mm x 63 mm (2.4 x 2.5 inches)
Full Throttle RPM Range 5,000-6,000 RPM
Rated Power 25 HP @ 5,500 RPM
Cooling System Water Cooled
Fuel Delivery 3 Carburetors
Ignition System PGM-IG
Starting System Electric
Exhaust Through Hub
Lubrication Wet Sump
Trim Range -4° to +12°
Tilt Range 64°


Gear Ratio 2.08:1
Gear Shift F-N-R


Alternator with voltage regulator (Electric Start) 10-Amp (126 watt)
Propeller 3-Blade Aluminum
Diameter x Pitch 9 1/4 x 12 inches
Power Tilt NA
Power Trim & Tilt Available
Gas Assisted Tilt Available
Oil Pressure Alert Standard
Temperature Alert Standard
Rev-Limiter Standard


Overall Width 375 mm/14.8 inches

Dry Weight

S-Type 70.5 kg/155 lbs.
L-Type 72.5 kg/160 lbs.

Transom Height

S Type 381 mm/15 inches
L Type 508 mm/20 inches