Outboard motor HONDA BF40

Outboard motor HONDA BF40

Brief description

  • Capacity 808 cm3
  • Power 40 hp
  • Screw size 11 1/4 x 13 inches
  • (4-stroke)
  • Weight 88-90 kg.


Maximum power kW (HP) 29.8 (40)
Engine Type: four-stroke, SOHC, EFI
Engine capacity, cm3 808
The range of operating speed, rpm 5500 - 6000
Bore x stroke mm 70,0 x 70,0
Idle speed, rpm 850 +/- 50
Number of cylinders: 3
Valves per cylinder 2
The drive of valves: 1 camshaft
Intake system: Injection PGM-FI
Generator: 22 A, 275 W
Weight, kg 97 (the lightest option)
Gear ratio: 2.08: 1
Tank capacity, l 25
Crankcase capacity, l 2
The capacity of the gearbox housing, l 0.41
Stated screw (Lop. x Dia. x Step), inch not supplied
Plug / gap: NGK DR7EB / 0.6 - 0.7 mm or
DENSO X22ESR-UB / 0.6 - 0.7 mm
Motor rake: Auxiliary cylinder/
electro-hydraulic lift
Deadwood length: S / L / X (for the transom 381/
508/635 mm)
Motor Control: Manual or remote
(Models marked R)
Noise (ICOMIA 39-94)
Vibration (ICOMIA 38-94): ------
Possible models:
BF40 LHTU(W): Manual control, electrolaunch,
electro-hydraulic lift
BF40 (L/X) RTW(U): Remote control,
electro-hydraulic lift

Extra description

Extremely compact and robust design of the four-stroke engines Honda BF40, with a capacity of 40 hp, allows it to operate reliably year after year. Auto-Start Enrichment Technology automatically adjusts the mixture of fuel and air for a quick start and engine warm-up. The special technology of the crankshaft makes this outboard unusually quiet, and significantly reduces the level of vibration.