2016 Mercury FourStroke 90 HP - 20 in. Shaft

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Availability
Brochure
Year
2016
Manufacturer
Mercury
Model
FourStroke 90 HP - 20 in. Shaft

Specs

Engine

Engine Type
8-valve single overhead cam (SOHC) Inline 4
Bore x Stroke
3.5 x 3.2 in. (90 x 81 mm)
Displacement
2.1 L
Starting
Smart Start Electric

Dimensions

Shaft Length
20 in. (508 mm)
Weight
359 lb. (163 kg)

General

Trim Method
Power Tilt; Power Trim
Propshaft Horsepower
90 hp (67 kW)
Full Throttle Operating Range
5000-6000 rpm
Gear Ratio / Shift
2.07:1 / F-N-R
Fuel Induction
Computer Controlled Multi-Port Electronic Fuel Injection (EFI)
Alternator
35 amp / 441 watt with water-cooled voltage regulator
Cooling
Water-cooled with thermostat
Steering
Big Tiller Compatible; Dual cable mechanical; Hydraulic power steering
Warranty
3 Year Corrosion; 3 Year Limited

Overview

Description

None More Durable. Or Efficient.



Tuned for max acceleration and throttle response.

Features
  • Lightweight & Fuel Efficient: Mercury’s world-renowned engineering team has packed incredible power into these lighter, compact four-cylinder single-overhead-cam engines.
  • Worry-free: The same lifetime maintenance-free valvetrain design found in our 150 FourStroke engines makes the 75-115hp FourStroke outboards incredibly durable.
  • Bigger Footprint: The larger Command Thrust gearcase creates a bigger footprint in the water, which provides more leverage to control your boat. The larger torpedo, combined with a bigger-diameter prop, can lift a heavy boat onto plane more easily and hold it there at lower speeds without impacting top speed.
  • Powerful & Efficient: Less weight and high displacement mean Mercury’s new 75 - 115 FourStrokes generate abundant torque and immediate power. Because they don’t have to work as hard as heavier engines or those with lower displacement, these engines make boats plane faster, accelerate better and provide optimal fuel efficiency at cruising speed.
Specifications
  • HP / kW: 90 / 67
  • Engine type: 8-valve single overhead cam (SOHC) Inline 4
  • Displacement (L): 2.1
  • Full throttle RPM: 5000-6000
  • Air induction: Performance-Tuned Scroll Intake Manifold
  • Fuel induction system: Computer Controlled Multi-Port Electronic Fuel Injection (EFI)
  • Alternator amp / Watt: 35 amp / 441 watt with water-cooled voltage regulator
  • Recommended fuel: Unleaded Regular 87 Octane Minimum (R+M/2) or 90 RON 10% Ethanol Maximum
  • Recommended oil: Mercury FourStroke Oil 10W-30
  • Engine protection operator warning system: SmartCraft Engine Guardian
  • Compatible with SmartCraft digital technology: Yes
  • Starting: Smart Start Electric
  • Controls: Mechanical throttle & shift
  • Steering: Big Tiller Compatible; Dual cable mechanical; Hydraulic power steering
  • Shaft length: 20 in. / 508 mm
  • Gearcase ratio: 2.07:1
  • Dry weight *Lightest model available: 359 lb. / 163 kg
  • CARB star rating: 3
  • Bore and stroke: 3.5 x 3.2 in. / 90 x 81 mm
  • Ignition: SmartCraft ECM 70 Digital Inductive
  • Fuel system: Electronic Fuel Injection (EFI)
  • Cooling system: Water-cooled with thermostat
  • Gear shift: F-N-R
  • Gearcase options: Standard
  • Trim system: Power Tilt; Power Trim
  • Exhaust system: Through prop
  • Shallow water trim range (degrees): 20
  • Color: Phantom Black
  • Lubrication system: Wet sump
  • Oil Capacity: 5.5 qts / 5.2 l
  • Maximum Trim Range: 22° (-6° to 16°)
  • Maximum Tilt Range: 70° (-6° to 64°)
NOTES:
Dry weight specification is for the lightest-version model. Comparative weights refer to base engines without oil, propeller or integral steering cylinder. Weights based on Owner’s Manual specifications.

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