Easy starting
The MERCURY F8 outboarder is Incredibly responsive, to get you going with little or no preparation at all!
Enhanced Features
The Mercury 8 and 9.9hp FourStroke outboards include:
- New three-position choke and no primer button improve starting, simplify the starting procedure and allow the engine to warm up faster
- A richer idle air/fuel mix makes the engine easier to start and provides better idle running quality (tiller handle models)
- A change to the ignition timing allows fishermen to find and hold optimal troll speed
Command Thrust
Big-time power. With a longer design and bigger components, Mercury Command Thrust was made specifically to deliver the type of power, thrust and control that wider, heavier boats demand.
The Command Thrust Difference (Blue shaded areas represent prop and gearcase advantages)
- 20% larger prop increases control especially at low speeds.
- Taller gearcase puts the prop deeper, below turbulent water, for improved performance.
- A low 2.42:1 gear ratio delivers thrust and maneuveraility that big loads demand.
- Oversized Antiventilation Plate. Oversized design prevents air from being drawn into the prop, which increases efficiency.
Power in the Palms of Your HandsThe Tiller model features an exclusive Mercury multifunction tiller. Which controls:
- Shifting
- Throttle control (featuring an optimal slow-speed throttle advance function)
- Stopping
- Tilting
- Steering
Lightweight
At only 38kg, these engines are very portable and improve the performance of lightweight boats.
Convenient and Easy Tilting
ush down on the tiller handle to easily tilt the outboard to any position, made easy with our exclusive ratcheting transom bracket.
Start Easily, Idle Smoothly
Mercury 8hp to 20hp FourStroke outboards have features that make starting easier, warm-ups faster and idling smoother!
- The fuel filter on 8hp to 20hp Mercury FourStrokes has been moved to keep the carburetor cleaner
- Tiller handle models have a richer air/fuel mix at idle
- They also come standard with a three-position choke, eliminating the need for a primer button
Technical data:
HP/kW | 8/5.9 |
Engine type | Inline 2 |
Displacement (CID/CC) | 12.8/208 |
Full throttle RPM | 5000-6000 |
Fuel induction system | 2 valves per cylinder, single overhead cam (SOHC) |
Recommended fuel | Unleaded 90RON minimum |
Recommended oil | Mercury FourStroke Oil 10W-30 |
Engine protection operator warning system | Low oil pressure, Over-rev |
Starting | Manual |
Steering | Tiller |
Shaft length | 20″/508 mm |
Gearcase ratio | 2.08:1 |
Dry weight *Lightest model available | 38 kg |
CARB star rating | 3 |
Bore and stroke | 2.16 x 1.73″ / 55 x 44 mm |
Ignition | CDI w/electronic spark advance |
Fuel system | Carbureted |
Cooling system | Water-cooled with thermostat |
Gear shift | F-N-R |
Gearcase options | Standard |
Trim positions | Ratcheting |
Exhaust system | Through propeller |
Shallow water drive | Yes |
Shallow water trim range (degrees) | 16 |
Integrated fuel tank (gal/L) | 3.2/12 |
Remote fuel tank standard (gal/L) | 3.2/12 |
Fuel tank, hoses and adapters are included.
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