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Mariner Outboard Engines MERCURY 9.9 BigFoot FourStroke

Go anywhere with portable power.

Taking the fun with you is one of the great advantages of owning an inflatable boat or small fishing boat. Mercury offers a complete line of extremely light portable FourStroke outboards, with the widest range of models to choose from. So wherever you and your boat go, your Mercury portable FourStroke can also go. The entire line makes operation and portability easy with smart, simple features. Plus, clean, quiet, fuel-efficient FourStroke performance makes them the obvious power of choice.

- Fingertip Control -

Mercury Fourstrokes are designed with a boat load of user-friendly features, such as our multifunction tiller handle. This tiller handle gives you easy one-handed operation of shifting, stopping, throttle, throttle friction, and tilt. More control equals better maneuverability.

- Convenient Trim Ratcheting -

The 8 and 9.9hp models come standard with both ratcheting trim and tilt lock. The ratcheting trim allows you to easily trim the motor up to the height you need. When you’re ready to tilt the engine down, the tilt lock will keep it at your selected angle.

- Lightweight Portable Champions -

The lightest engine in its class, the 8 and 9.9hp outboards come in at a scant 83 pounds. These outboards are a perfect fit for a wide range of small boat applications.

- Kick it up a Notch. -

  • The 9.9hp Mercury ProKicker features a compact, integrated power tilt and a heavy-duty transom bracket for maximum strength, speed, and durability.
  • Additionally, the 9.9hp ProKicker sports an updated graphics package designed to complement the OptiMax Pro XS and Verado outboards. Installed next to a Pro XS or Verado outboard, the improved ProKicker graphics will make your rig stand out from the rest of the pack.
  • Patented Centering Straps. Holds the engine straight without additional hold-downs when running in rough conditions or trailering (Standard on Tiller Pro Kickers).

HP/Kw @ Prop 9.9 / 7.3
Full throttle RPM 5000-6000
Cylinder Configuration 2 (in-line)
Displacement (CID / CC) 12.8 / 208
Bore and Stroke (in / mm) 2.16 x 1.73in
55 x 44mm
Fuel Induction System 2 valves per cylinder, single overhead cam (SOHC)
Ignition CDI w/electronic spark advance
Fuel System Carbureted
Alternator Amp 6 amp / 76 watt
Cooling System Water-cooled with thermostat
Starting Electric
Manual
Gearcase Ratio 2.42:1
Gear Shift F-N-R
Gearcase Options BigFoot
Steering Remote
Tiller
Trim System Power Tilt
Trim Positions Ratcheting
Exhaust System Though prop
Shallow water drive Yes
Shallow water trim range (degrees) 16
Recommended Oil Mercury 4-Stroke Outboard Oil
Recommended Fuel 87 octane/up to 10% ethanol
Remote fuel tank standard (gal / L) 3.2 / 12
Engine Protection Operator Warning System Low oil pressure
Over-rev
Shaft Length 20 in (508 mm)
25 in (635mm)
Dry Weight * Lightest model available 96lbs / 44kg
CARB Star Rating 3

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MERCURY 9.9 BigFoot FourStroke

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