Trade-A-Boat — November 2017

quickspecs

Honda BF250

TYPE 4-Stroke, SOHC, 60 ̊

V6, 24 Valve

RATED HP 250

DISPLACEMENT 3600cc

WEIGHT 288kg

GEAR RATIO 2.00:1

PROPELLER Stainless

14.75”x15”

W

hen giant
car and
motorcycle
builder
Honda
got into high-performance
outboard manufacturing,
the company already had
years of technological
achievement behind it.
But despite some cutting
edge innovations over the
years (think the oval piston
GP bike engines) Honda
remains a conservative
player on the water.

While other manufacturers

push the limits of outboard

power to 400hp, the BF250

remains the Japanese

company’s fl agship.

Like other engines in its

higher output lineup, the

250 was developed from the

Odyssey van engine, but with

a longer stroke than the 225

• big in comparison to many
  similar output competitors.
  Weighing in at 288kg and
  with a gear ratio of 2.00:1,
  the motor bears a list of
  technological features

designed to give power with

economy.

Separate air intakes at

the top of the cowling send

one stream of air to cool

signifi cant components and

the other to the engine after

moisture is removed.

Oxygen sensors enable

Lean Burn fuel mixing

through the Computer

module control to the fuel

injection system to save

fuel when loads are low

and its Boosted Low-Speed

Torque technology (BLAST)

250hp Honda, 150L fuel in 350L tank, two people on board

(calculated using, 10% reserve)

RPM SPEED (KTS) (LT/H) RANGE (NM)

800 (idle) 1 2.1 150

1000 3 3.5 270

1500 5 5.5 286

2000 6.5 9 227

2500 8.5 14 191

3000 (planing) 12 16 236

3500 (optimum) 17 20 267

4000 23 28 258

4500 25 31 259

5000 29 40 225

5500 32 62 162

6000 35 68 162

6200 (WOT) 38 82 140

*Sea-trial data supplied by the author.

The motor bears a

st of technological

features designed

to give power with

economy”

advances the timing when

the throttle is opened

quickly for better power.

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