Mercury FourStroke 2.5hp 15in Short Shaft Tiller Outboard Motor
Details
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Product Info
Product Info
Compact, reliable, and made for easy days on the water, the Mercury FourStroke 2.5hp Outboard Motor packs impressive performance into a lightweight 18kg frame. Perfect for small boats, tenders, and inflatables, it’s designed for boaters who want dependable portable power that’s simple to handle and transport. The ergonomic carry handle and built-in lifting points make moving and mounting effortless, whether you’re heading out solo or helping the crew get set up.
The long tiller handle with twist-grip throttle gives smooth, responsive control at all speeds, while 180° steering and full-thrust reverse make docking and tight manoeuvres a breeze. The integrated 1L fuel tank keeps your setup compact and efficient, with a handy shutoff valve that allows you to run the carburettor dry for longer-term storage and extended engine life.
Starting is quick and easy thanks to the Capacitor Discharge (CD) ignition and decompression system, designed to deliver consistent spark and effortless rope starts. Once you’re underway, the four-point mounting system helps absorb vibration across all rpm ranges for a smoother ride. Maintenance is simple too, with an easy-view oil gauge and accessible drain plug that make servicing straightforward. The four manual trim positions let you fine-tune performance to suit your boat and conditions, while the tilt lock system makes it easy to lift the motor clear of the water when beaching or trailering.
Backed by Mercury’s impressive 3+3=6 year non-declining warranty, this compact FourStroke gives you the perfect blend of portability, control, and reliability — ready to power your next boating adventure.
Features
- Lightweight 2.5hp design weighing just 18kg and easy to lift, carry, and mount
- Forward and neutral shifting with 180° steering and full-thrust reverse for total control
- 1L built-in fuel tank that saves space and includes a shutoff valve for easy storage and carb protection
- Long tiller handle with a twist-grip throttle for simple, comfortable operation
- Throttle and steering friction control that lets you fine-tune resistance for smoother handling
- Multi-point mounting system that absorbs vibration and keeps things steady at any RPM
- Easy rope starting with CD ignition and decompression system for reliable, low-effort starts
- Simple maintenance with an oil sight gauge, drain plug, and fuel shutoff for cleaner oil changes and storage
- Four manual trim positions to maximise performance and lift the motor out of the water when needed
- Backed by Mercury’s 3+3=6 year non-declining warranty for lasting confidence on the water
Product Overview
Built to take on the harshest marine conditions, Mercury FourStroke outboards come armed with corrosion-fighting tech from top to bottom. We’re talking advanced alloys, tough-as-nails protective coatings, sealed electronics to keep the nasties out, and an easy freshwater flush system to rinse everything clean after a big day on the water. Premium protection that keeps your motor running stronger for longer.
Advanced tillerSet it up your way. Mercury’s adjustable tiller puts all the controls right where you need them, with options for left- or right-handed operation on select models. Comfortable, natural steering that keeps you in charge of every adventure.
Easy portabilityLightweight, simple to mount, and built for fun. Mercury’s 2.5–20hp four-stroke range lets you take the good times anywhere — from the tinny on the river to the tender behind the cruiser.
Convenient MaintenanceMercury makes the upkeep easy as. A no-spill oil change system, easy-out fuel filter, and a lifetime maintenance-free valve train all help keep you on the water longer and out of the shed.
Mercury 3 + 3 = 6 year warranty
When you purchase a brand-new Mercury Outboard from an authorised dealer, you’re covered by a massive 3+3 year warranty. That includes a bonus extra 3 years, factory-backed, with the same comprehensive coverage as Mercury’s standard 3-year manufacturer’s warranty — labour excluded — for any failures caused by defects in materials or workmanship. And good news: if you pass the motor on, any unexpired warranty can be transferred to the next owner as long as the product is properly re-registered.
Bonus Warranty Conditions
- The dealer must complete and document the official Mercury Marine pre-delivery inspection. Warranty only kicks in once the dealer has correctly registered your outboard.
- All servicing, maintenance, and repairs must be carried out by a factory-authorised Mercury dealer, and logged with Mercury.
- Stick to the recommended service intervals and maintenance schedule from the date of purchase.
- Only use genuine Mercury parts, oils, and lubricants.
- Make sure each service is recorded in your logbook and registered online by your authorised dealer.
Maintenance Schedule
First 3 Month Inspection3 months from date of sale or 20 hours for use - whichever occurs first. This post sale inspection will ensure everything is operating as required on your new engine. Even if your engine has only been used for a few hours, it is important to get this inspection done by the due date.
Annual InspectionOnce a year or every 100 hours of use - whichever occurs first.
Tech Spec
| 2.5HP SHORT SHAFT | 3.5HP SHORT SHAFT | 3.5HP LONG SHAFT | 4HP SHORT SHAFT | 5HP SHORT SHAFT | 6HP SHORT SHAFT | 6HP LONG SHAFT | |
|---|---|---|---|---|---|---|---|
| HORSE POWER | 2.5HP | 3.5HP | 3.5HP | 4HP | 5HP | 6HP | 6HP |
| SHAFT LENGTH | 15" | 15" | 20" | 15" | 15" | 15" | 20" |
| TRANSOM BRACKET TO CAVITATION PLATE MEASUREMENT | 17" 434mm | 17" 434mm | 17" 434mm | 17" 434mm | 17" 434mm | 22" 561mm | 22" 561mm |
| SUITS TRANSOM HEIGHTS | 15-17.5" 381-445mm | 15-17.5" 381-445mm | 15-17.5" 381-445mm | 15-17.5" 381-445mm | 15-17.5" 381-445mm | 19-22.5" 483-572mm | 19-22.5" 483-572mm |
| CAPACITY/CYLINDERS | 85CC / 1cyl | 85CC / 1cyl | 85CC / 1cyl | 123cc / 1cyl | 123cc / 1cyl | 123cc / 1cyl | 123cc / 1cyl |
| MAX RPM AT FULL THROTTLE | 4500-5500 | 5000-6000 | 5000-6000 | 4500-5500 | 4500-5500 | 5000-6000 | 5000-6000 |
| COOLING SYSTEM | Water-cooled with thermostat | ||||||
| STARTING | Manual | ||||||
| FUEL SYSTEM | Carburettor | ||||||
| FUEL TYPE | Regular Unleaded | ||||||
| FUEL TANK | Built-in 1L | Built-in 1L | Built-in 1L | Built-in 1.1L | Built-in 1.1L | Built-in 1.1L | Built-in 1.1L |
| GEAR RATIO | 2.15:1 | ||||||
| CONTROL & GEAR SHIFT | Tiller 360° / F-N | Tiller with side shift 360° / F-N | Tiller with side shift 360° / F-N | Tiller with side shift / F-N-R | Tiller with side shift / F-N-R | Tiller with side shift / F-N-R | Tiller with side shift / F-N-R |
| MOUNT STYLE | Thumbscrew | ||||||
| TRIM/TILT | Manual- 4 position | Manual- 4 position | Manual- 4 position | Manual- 6 position | Manual- 6 position | Manual- 6 position | Manual- 6 position |
| PROPELLOR | 3 blade aluminium | ||||||
| WEIGHT | 18kg | 18kg | 18kg | 26.3kg | 26.3kg | 26.3kg | 27.1kg |
| WARRANTY | 3+3=6 | ||||||