2.5HP Four Stroke Outboard Motor

Home Four stroke outboard motor 2.5HP Four Stroke Outboard Motor

Model: F2.5BMS

JIANHANG 2.5HP four-stroke outboard motor, 17.5kg lightweight with CDI ignition and water cooling. Ideal for inflatable boats, fishing dinghies. Factory direct marine power.

MAX OUTPUT

1.9 （2.5）@5000 KW(HP)@r/min

WEIGHT

17.5 kg

FUEL TANK

0.9 L(litre)

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MANUAL

CE CERTIFIED ISO icon

ISO 9001

OEM AVAILABLE

PRODUCT HIGHLIGHTS

KEY FEATURES

Stable Low-Power Output

1.9KW (2.5HP) single-cylinder power, steady performance at rated 4500~5500 r/min for small watercraft

Ultra-Light & Compact

17.5kg net weight, small overall size, easy to carry, install and store without hull load

Reliable Ignition & Start

CDI ignition system + manual start, fast misfire-free start in all weather conditions

Efficient Cooling & Durability

Water cooling system prevents overheating; marine-grade parts for long service life

COMPLETE DATA

TECHNICAL SPECIFICATIONS

Model	F2.5BMS
Overall Length	625mm
Overall Width	343mm
Overall Height	1013mm
Transom height	S:381mm
Net Weight	S:17.5kg
Full throttle operating range	4500～5500r/min
Maximum output	1.9（2.5）@5000 KW(HP)@r/min
Idling speed	2000～2200r/min
Cylinders	1
Displacement	72cm³
max.fuel consumption	1.1L/h
Bore×Stroke	54×36 (1.85×1.70)mm
Control system	Tiller
Starting System	Manual
Gear positions	F-N
Gear ratio	2.08（27/13）
Trim and tilt system	Manual tilt
Fuel tank capacity	0.9L(litre)
Fuel	92#
Engine oil capacity	0.35L(litre)
ignition system	CDI
Cooling system	water-cooling
Gear oil capacity	75
Propeller spec.	3-7 1/7″×6″-J
Packing size	1070565345mm

APPLICATION SCENARIOS

BUILT FOR EVERY MISSION

Our outboards adapt to various boats, delivering stable, efficient power for fishing, leisure, work and inland water transport.

Small inflatable boats/rubber dinghies for leisure cruising

Portable small inflatable dinghies feature flexible navigation, ideal for short leisure cruising and casual water activities.

Mini fishing boats for freshwater/coastal shallow water fishing

Shallow-draft mini fishing boats with stable performance, perfect for freshwater and coastal shallow water fishing.

Solo kayaks/canoes with motor mounts

Single-person kayaks and canoes with motor brackets, supporting manual or power propulsion for water trips.

Light small work boats for lake/river operations

Maneuverable light work boats with solid load capacity, dedicated to routine lake and river operational tasks.

Emergency backup power for small watercraft

Compact emergency backup power for small boats, easy to install and ensure safe return in sudden power failure.

COMMON QUESTIONS

FAQ

What fuel does the F2.5BMS use?

Standard 92# gasoline, easily refueled at gas stations worldwide.

Is it suitable for saltwater use?

Yes, with corrosion-resistant parts; rinse with fresh water after saltwater use for longer service life.

How easy is the F2.5BMS to install?

Tool-free quick installation, plug-and-play for most small boat transoms.

What’s the maintenance requirement?

Minimal—only regular oil replacement and basic cleaning, no complex upkeep.

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