Evinrude 90 ETEC Specifications
| Engine Model: Evinrude E-TEC 90 |
| Engine Type: 2-stroke inline 3-cylinder gasoline outboard engine |
| Total Displacement: 79.1 cu.in (1.3 L) |
| Rated Engine Power: 90 Hp (67 kW) at 5000 rpm |
| Fuel System: Direct fuel injection (DFI) |
____________________________________________________________________________________
The Evinrude 90 ETEC is built around an inline
three-cylinder powerhead utilizing advanced E-TEC direct fuel injection.
This system is managed by a sophisticated Engine Management Module (EMM)
that continuously monitors and optimizes fuel delivery, ignition timing,
and lubrication for peak performance across the entire RPM range.
The engine is available in several model configurations including
E90DSL, E90DPGL, E90DPX, and E90DGX.
Power: 90 HP (67 kW) at the propeller, rated at 5000 RPM
Engine Type: Inline 3-Cylinder E-TEC Direct Injection, 2-Stroke
Displacement: 79.1 cu in (1295 cc) 1.3L
Bore x Stroke: 3.62 in x 2.60 in (92 mm x 66 mm)
Full Throttle RPM Range: 5000-5500 RPM
Fuel Induction System: E-TEC Direct Injection with stratified low RPM
combustion mode
Alternator Output: 81 Amps Total Output / 25 Amps Net Dedicated
Starting System: Electric
Controls: Mechanical
Steering: Remote with tiller accessory available
Gear Ratio: 2.00:1 for E90DSL and E90DPGL models; 2.25:1 for E90DPX and
E90DGX models
Emissions Compliance: EPA 2013 / CARB 3 STAR / European Union
Engine Monitoring: S.A.F.E. (Speed Adjusting Failsafe Electronics) Mode
Sound Level: 76.8 dB(A) at driver's ear per ICOMIA 39.94
The powerhead of the Evinrude E-TEC 90 features an inline three-cylinder
block cast from high-strength, corrosion-resistant materials. The
cylinder bore measures 92 mm, and the piston stroke is 66 mm,
contributing to the engine's 1295 cc displacement. The engine utilizes
massively oversquare or short stroke engineering, where the cylinder
bore diameter exceeds the piston stroke measurement, dramatically
reducing piston speed at higher RPM and increasing component lifespan.
As a two-stroke engine, it utilizes a reed valve induction system. These
one-way valves are located in the intake manifold and control the
air-fuel mixture entering the crankcase. There are no camshaft timing
belts or valve clearance adjustments required, eliminating components
that require adjustment or replacement. The engine shares design
elements with other members of the E-TEC family, ensuring parts
availability and service familiarity.
The fuel system is centered around Evinrude's advanced E-TEC direct
injection technology with stratified low RPM combustion mode.
High-pressure fuel injectors, precisely controlled by the EMM, deliver a
finely atomized fuel spray directly into the combustion chambers. At low
RPM, the engine operates in a stratified combustion mode where fuel is
injected in narrow conical spray patterns near the spark plugs,
resulting in lower trolling fuel consumption than many four-stroke
competitors.
The EMM performs more than eight million calculations per second to
deliver the precise amount of fuel required at any given RPM. The engine
is designed to operate on standard 87 octane unleaded gasoline. An
in-line replaceable fuel filter is incorporated into the system,
ensuring clean fuel delivery to the precision injectors.
Lubrication is managed by a sophisticated multi-point targeted oiling
system with variable ratio control. An electric oil pump, controlled by
the EMM, draws oil from the integral tank and injects it directly onto
critical engine components based on real-time engine speed and load
demands. The oil injection ratios vary depending on operating conditions
to optimize lubrication while minimizing oil consumption.
An on-engine oil tank with a capacity of 2.3 liters (2.4 quarts) is
standard. The recommended lubricant is Evinrude/Johnson XD-100 oil, a
fully synthetic oil specifically formulated for E-TEC engines to
maximize performance and reduce carbon deposits. TC-W3 NMMA-certified
oil may also be used as an alternative. The system eliminates the need
for oil changes, oil filters, and the disposal of used crankcase oil.
The cooling system is a pressure and temperature-controlled water-cooled
design. A high-capacity water pump in the lower unit circulates water
through extensive water jackets in the cylinder block and cylinder head.
The system uses a two-stage design controlled by thermostats and a
pressure valve to maintain optimal operating temperature across all
engine speeds. At low engine speeds, thermostats regulate water flow,
opening fully as the engine reaches operating temperature.
As engine speed increases, water pressure opens a relief valve, allowing
high-flow water circulation to provide enhanced cooling during
high-speed operation. A water pump indicator provides a steady stream of
water, confirming the water pump is working properly. The EMM
continuously monitors engine temperature and will activate the S.A.F.E.
warning system to reduce RPM and protect the engine if an overheat
condition is detected.
| Mid Section and Lower Unit |
The mid-section houses the driveshaft and exhaust tube, connecting the
powerhead to the lower unit. It is designed for robust performance and
features extensive corrosion-resistant coatings suitable for saltwater
operation. The lower unit contains the gearcase with reduction ratios of
2.00:1 for standard models and 2.25:1 for models requiring additional
thrust.
The gearcase is robust and filled with high-performance lubricant,
specifically Evinrude Ultra-HPF gearcase lubricant. Gearcase lubricant
capacity is 31.6 fl oz (935 ml) for L models and 32.8 fl oz (970 ml) for
X models. The gearcase features a forward-neutral-reverse shifting
mechanism. The exhaust is routed through the propeller hub for efficient
discharge and reduced noise. Water intake screens on the gearcase
require regular inspection and must be torqued to 60 to 84 lb-in during
service.
The Evinrude 90 ETEC is equipped with Trac-1 Power Trim and Tilt as
standard equipment. This hydraulic system allows the operator to adjust
the engine angle for optimal boat performance, acceleration, and
shallow-water operation. The trim range is from -4 deg to +17 deg,
providing precise adjustment of the boat's running attitude.
The tilt range extends to 75 deg, offering ample clearance for beaching,
launching, or trailering. Power trim and tilt fluid capacity is 21 fl oz
(622 ml). The system includes a manual release valve for emergency
operation, with the fill plug requiring 45 to 55 lb-in of torque. Tilt
tube nuts must be torqued to 45 to 50 lb-ft for secure installation.
Proper propeller selection is critical to allow the engine to operate
within its 5000-5500 RPM full-throttle range under normal load
conditions. The Evinrude 90 HP E-TEC utilizes propellers designed for
the specific gear ratio of the model. Models with the 2.25:1 gear ratio
are particularly suited for applications requiring enhanced low-end
thrust, such as pontoon boats or heavy workboats.
The specific propeller selection depends on boat type, intended use, and
load conditions. Two different torque specifications apply to propeller
installation depending on gearcase type. For standard gearcase
applications, the propeller nut must be torqued to 120 to 144 lb-in
(13.6 to 16.3 N·m) and secured with a new cotter pin. For V6 or
heavy-duty gearcase applications, the propeller nut requires 70 to 80
lb-ft of torque. After installation, the propeller must spin freely with
the engine in neutral.
Shaft Length Options:
- 20 inches (508 mm) for E90DSL and E90DPGL;
- 25 inches (635 mm) for E90DPX and E90DGX.
Weight:
- 320 lbs (145 kg) for E90DSL and E90DPGL;
- 335 lbs (152 kg) for E90DPX and E90DGX.
Transom Height Range:
- 19.5 to 20 inches (495 to 508 mm) for L models;
- 24.5 to 25 inches (622 to 635 mm) for X models.
The Evinrude 90 E-TEC is engineered for minimal maintenance
requirements. A key benefit is no scheduled dealer maintenance required
for the first three years or 300 hours of normal recreational use. The
engine features an auto-winterization mode that simplifies long-term
storage. The EMM continuously monitors engine systems and stores fault
codes for diagnostic purposes.
Recommended pre-launch checks include verifying oil level in the
on-engine reservoir and inspecting for any signs of damage or corrosion.
Routine maintenance items include periodic inspection of sacrificial
anodes, particularly in saltwater applications. Gearcase lubricant
should be checked and changed according to service intervals. The
cooling system incorporates debris-resistant design and can be flushed
using standard procedures.
Battery requirements include a 12-volt, heavy-duty marine battery rated
at minimum 640 CCA (800 MCA), with 800 CCA (1000 MCA) recommended for
operation below 32°F (0°C). The warning system self-tests each time the
key switch is turned from OFF to ON. The S.A.F.E. system will activate
to reduce engine speed if an overheat condition or low oil pressure is
detected. Idle speed in gear is 700 ± 50 RPM, and idle speed in neutral
is 600 ± 50 RPM.
Recommended Fuel: 87 Octane Unleaded (90 RON)
Recommended Oil: Evinrude/Johnson XD-100 Oil or TC-W3 NMMA-certified oil
Oil Tank Capacity: 2.3 L (2.4 qt)
Gearcase Lubricant: Evinrude Ultra-HPF with capacity 31.6 fl oz (935 ml)
for L models, 32.8 fl oz (970 ml) for X models
Propeller Nut (Standard Gearcase): 120 to 144 lb-in (13.6 to 16.3 N·m)
Propeller Nut (V6/Heavy Duty Gearcase): 70 to 80 lb-ft
Shift Rod Cover Screws: 60 to 84 lb-in
Stator Screws: 84 to 106 lb-in
Trim/Tilt Cylinder Fill Plug: 45 to 55 lb-in
Tilt Tube Nut: 45 to 50 lb-ft
Steering Cable Retainer Screw: 60 to 84 lb-in
Water Intake Screens: 60 to 84 lb-in
Transom Mounting Bolts: 40 lb-ft
Powerhead to Base Bolts: 20 lb-ft
Starter Motor Screws: 168 to 192 lb-in
The Evinrude E-TEC 90 is a highly versatile powerplant suitable for a
broad spectrum of boat types and boating activities. It is an ideal
choice for 14 to 18-foot aluminum fishing boats, runabouts, and utility
craft, providing the power needed for rapid planing and efficient
cruising in inland and coastal waters.
The engine is particularly well-suited for pontoon boat applications,
with special Pontoon Series models available featuring advanced motor
mounts that reduce vibration by up to 40 percent and high-thrust gear
ratios for enhanced acceleration and maneuverability. The 2.25:1 gear
ratio models provide additional thrust for heavier boats or applications
requiring superior low-end power. The engine is also popular for
freshwater fishing, bay and flats boats, and as auxiliary power for
larger vessels.
____________________________________________________________________________________
| Outboard Engines Technical Specifications |
| Small Engines Technical Specifications |
| Car Engines Technical Specifications |
| Industrial Engines Technical Specifications |
