2025 Mercury FourStroke 90 ELPT CT Outboard Motors

OVERVIEW

Mercury FourStroke outboard motors are incredibly powerful and efficient, and they feature a wide range of applications. Crafted for less weight and high displacement, they generate abundant torque and immediate power. And because they don't have to work as hard as heavier engines or those with lower displacement, they make boats plane faster and accelerate better, and they provide optimal fuel efficiency at cruising speed.

SPECS

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" / 508 mm

25" / 635 mm

Gearcase ratio 2.07:1 or 2.38:1 (CT model)

Dry weight *Lightest model available 359 lbs / 163 kg; 363 lbs / 165 kg (CT model)

CARB star rating 3

Bore and stroke 3.5 x 3.2" / 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 Command Thrust 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°)

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