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Mercury 150 FourStroke User Manual

Mercury 150 FourStroke
136 pages
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Outboard
Operation
Maintenance
Warranty
Installation
Manual
© 2015 Mercury Marine
150 FourStroke
8M0105247 415 eng

Table of Contents

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Mercury 150 FourStroke Specifications

General IconGeneral
Number of Cylinders4
Weight455 lbs (206 kg)
Fuel SystemElectronic Fuel Injection (EFI)
Starting SystemElectric Start
Horsepower150 hp
Displacement3.0L
Shaft Length20", 25"
Alternator Output60 amps
SteeringHydraulic Steering

Summary

WARRANTY INFORMATION

Warranty Registration United States and Canada

Details on how to register your product to be eligible for warranty coverage.

3 Year Limited Warranty Against Corrosion

Details the coverage for corrosion for Mercury Marine outboards and sterndrive engines.

GENERAL INFORMATION

FUEL AND OIL

Fuel Recommendations

Guidelines on recommended gasoline types and octane ratings for optimal engine performance.

OPERATION

Engine Break‑in Procedure

Instructions for the engine break-in period to ensure optimal performance and longevity.

MAINTENANCE

Inspection and Maintenance Schedule

Schedule detailing routine inspections and maintenance tasks for the outboard.

Propeller Replacement

Instructions and safety precautions for removing and installing propellers.

Spark Plug Inspection and Replacement

Guidance on inspecting spark plugs for wear and proper replacement procedures.

Changing Engine Oil

Detailed procedure for changing the engine oil and filter.

TROUBLESHOOTING

Starter Motor Will Not Crank the Engine

Identifies possible causes when the starter motor fails to crank the engine.

Engine Will Not Start

Lists potential reasons why the engine may not start.

Performance Loss

Diagnoses common causes for a reduction in engine performance.

Battery Will Not Hold Charge

Troubleshooting steps for issues related to the battery not holding a charge.

OUTBOARD INSTALLATION

Mercury Marine Validated Engine Mounting Hardware

Guidelines for using Mercury Marine validated fasteners for secure outboard mounting.

Fastening the Outboard to the Transom

Details on mounting bolts and procedures for securely attaching the outboard.

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