The Honda BF250 four-stroke engine is the newest and most powerful outboard to join the Honda Marine lineup – and now the company’s flagship model. The design of the BF250 incorporates a number of advanced technological innovations that contribute to the engine’s high fuel economy and superior performance. The 3.6 liter VTEC® (Variable Valve Timing and Lift Electronic Control®) engine is equipped with an all-new gear case, incorporates the world’s first marine direct air induction system of its type on a production outboard (providing for cooler, denser air for better combustion than conventional under-cowl induction systems), and has a full-throttle RPM range of 5300-6300.
The Honda BF250 engine also incorporates the Boosted Low Speed Torque (BLAST™) System through which holeshot and acceleration are dramatically improved by advancing ignition spark timing to within one degree of the knock limit during ‘hammer down’ acceleration.
Engine |
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Type |
Four-Stroke 60° V-6 |
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Displacement |
3583 cc (219 cubic in) |
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Bore & Stroke |
89 mm x 96 mm (3.50 in. x 3.77 in) |
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Full Throttle HP Range |
5300 – 6300 RPM |
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HP Rating at Propshaft |
250 hp @ 5800 rpm |
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Induction Scavenging |
SOHC VTEC® |
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Valves Per Cylinder |
4 |
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Fuel Delivery |
Programmed Fuel Injection |
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Fuel |
86 Octane |
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Ignition System |
Microcomputer Programmed |
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Starting System |
Electric |
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Lubrication |
Wet Sump |
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Cooling System |
Water Cooled |
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Alternator |
90 Total Amps (60 Charging Amps) |
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Trim Range |
-4° to +16° |
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Tilt Range |
72° |
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Drive |
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Gear Ratio |
2:00:1 (24/12) |
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Gear Shift |
F-N-R |
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Propeller |
Optional (up to 16” diameter) |
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Dimensions |
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Overall Length |
920 mm / 36.22 in |
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Overall Width |
625 mm / 24.60 in |
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Recommended Transom Height(s) |
(L) 508 mm / 20.0 in |
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(X) 635 mm / 25.0 in |
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(XX) 762 mm/ 30.0 in |
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Dry Weight |
(L) 278 kg / 611 lbs |
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(X) 284 kg / 624 lbs |
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(XX) 288 kg / 633 lbs |