Mercury 2.5hp Outboard Engine

This engine is supplied in partnership with Cambridge Outboards, an official Tohatsu dealer giving you peace of mind with expert support and matching dealer pricing.

Overview

The Mercury F2.5M 2.5hp short shaft 4-stroke outboard is a compact, reliable choice for small inflatables, soft-hull boats, dinghies, utility boats and small sailboats. Its simple manual start, portable weight and 360° tiller steering make it an easy engine to carry, mount and operate – perfect when you want dependable small-boat power without the bulk.

Why it’s a great choice for inflatables

• Compact 4-stroke outboard that’s easy to transport and store
• Manual pull start for simple, no-fuss operation
• Tiller steering with 360° turning for excellent manoeuvrability
• Above-prop exhaust design
• Strong match for smaller Hydrus boats

Supplied with dealer support

This engine is supplied in partnership with Cambridge Outboards, an official Tohatsu dealer, providing peace of mind with expert support and matching dealer pricing.

Specifications

• HP / kW: 2.5 / 1.9
• Engine type: 1 cylinder
• Displacement (CID/CC): 5.2 / 85
• Full throttle RPM: 4,500 – 5,500
• Fuel induction system: 2-valve pushrod (overhead valve)
• Starting: Manual
• Steering: Tiller with 360° turning
• Shaft length: 15″ / 381 mm (short shaft)
• Gear shift: F-N (Forward-Neutral)
• Gearcase ratio: 2.15:1
• Dry weight (lightest model): 41 lbs / 18 kg
• Cooling system: Water-cooled with thermostat
• Ignition: CDI w/electronic spark advance
• Fuel system: Carbureted
• Engine protection operator warning system: Over-rev
• Trim system: 4 position (trim positions: 4)
• Shallow water trim range (degrees): 16
• Exhaust system: Above prop
• Colour: Phantom Black

Fuel and oil recommendations

• Recommended fuel: Unleaded 90RON minimum
• Recommended oil: Mercury FourStroke Oil 10W-30

FAQs

Is this outboard suitable for inflatable boats?

Yes. The F2.5M is specifically positioned as a great choice for inflatable soft hull boats and other small craft thanks to its compact size and easy handling.

Is this a short shaft or long shaft model?

This is the short shaft model (15″ / 381 mm). A long shaft option is also available.

Does it have reverse?

No. This model uses F-N (Forward-Neutral).

How does it start?

Manual pull start.

What makes it easy to manoeuvre on small boats?

It features tiller steering with 360° turning, helping you manoeuvre confidently in tight spots.

Is it a good match for Hydrus boats?

Yes. It’s described as a perfect match for smaller Hydrus boats.

Shipping cost

There is a (Pre Delivery Inspection) and shipping charge for this item to mainland UK:

If shipping with a Hydrus then shipping will be:

Please let us know if you prefer to collect for FREE from Worthing, West Sussex or if you’d like to arrange your own delivery.

Please Note: Our warehouse is NOT open to the public.

For shipping overseas please contact us first.

Please see all our Shipping Fees here.

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