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Manufacturer

Yamaha B 6hp

Japanese manufacturer of marine propulsion and boat-control systems, including electric propulsion products.

Official manufacturer website ↗
← Portable
B 6hp

B 6hp

Meet the B 6hp — a twin-cylinder marvel with all the charm of a gentleman and the torque of a troublemaker. Refined, powerful and built to handle bigger adventures without breaking a sweat.

Key facts

  • Family: Portable
  • Engine type: SOHC, In-line 2 cylinders
  • Displacement: 212 cm³
  • Rated output: 4.4 kW
  • Weight: 38 kg – 41 kg
  • Operating range: 5000 – 6000 r/min
  • Fuel system: 1 carburetor

Position in Yamaha range

The Portable family is focused on lower-output engines where mass, handling, storage and simple installation are key considerations.

This is model 2 of 5 in the Portable family when the range is ordered from higher to lower rated output.

Neighbouring models

  • Higher-output neighbour: 6hp
  • Lower-output neighbour: 5hp

Before choosing

Verify the boat manufacturer’s permitted power range, transom height and shaft length, engine and rigging weight, steering and control compatibility, electrical load, propeller selection and the exact variant code before ordering. For twin or multiple-engine installations, confirm steering and control-system requirements as a complete package.

FAQ

Is this the same as another Yamaha model with similar horsepower?
Not necessarily. Yamaha can offer different families, control systems, shaft lengths, rotations or duty-oriented variants at a similar output. Compare the full specification rather than horsepower alone.
What should be verified before installation?
Confirm shaft or mounting configuration, steering and controls, electrical requirements, propeller selection, weight and the exact model or variant code.

Sources & verification

Technical data: Yamaha Motor Europe official product page. Official factsheet. Verified: 2026-09-06.

SKU: 2026-F6DM-LGM3-FSMNA

Engine

Engine typeSOHC, In-line 2 cylinders
Displacement212 cm³
Bore x stroke56.0 × 43.0 mm
Compression ratio9.4 : 1
Fuel induction system1 carburetor
Lubrication systemWet sump
Engine oil capacity0.8 L
Ignition / advance systemCDI
Alternator6 A

Dimensions

Overall lengthMH: 983 mm, M: 557 mm
Overall widthMH: 373 mm, M: 333 mm
Overall heightS: 1008 mm, L: 1135 mm
Engine transom heightS: 431 mm, L: 558 mm
Steering angle43 degrees each direction
Dry weight38 kg – 41 kg

Performance

Maximum propeller shaft output4.4 kW
Full throttle operating range5000 – 6000 r/min
Idling speed1000 – 1100 r/min

Bracket/Drive

Shallow water driveManual: 2 positions
Gear shiftF-N-R
Gear ratio2.08 (27/13)
Gear oil capacity0.150 L