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Mercury Manuals
Outboard Motor
3.0 TKS
Operation & maintenance manual
Mercury 3.0 TKS Operation & Maintenance Manual
Sterndrive models
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Contents
Table of Contents
Troubleshooting
Bookmarks
Table of Contents
Table of Contents
Identification Information
Identification
Engine Serial Number Decal
Alpha Sterndrive Serial Number
Alpha Transom Serial Number
Lanyard Stop Switch
Keep the Lanyard Stop Switch and Lanyard Cord in Good Operating Condition
Instrumentation
Vesselview
Smartcraft Digital Instruments
System Link Digital Instruments
Remote Controls
Panel Mount Features
Console Mount Features
Power Trim
Single Engine Trim/Trailer
Dual Engine Trim/Trailer
Electrical System Overload Protection-3.0 MPI ECT
Electrical System Overload Protection-3.0 TKS
Visual and Audio Warning Systems (ECT)
Service Engine Light and OBD-M MIL Kit
Caution
Critical
Testing the Audio Warning System
Testing the OBD-M Malfunction Indicator Lamp (MIL). 15 Audio Warning System
Guardian Strategy
Audio Warning System-3.0 TKS
Testing the Audio Warning System
Section 2 - on the Water 2
Safe Boating Recommendations
Carbon Monoxide Exposure
Be Alert to Carbon Monoxide Poisoning
Stay Clear of Exhaust Areas
Good Ventilation
Poor Ventilation
Launching and Boat Operation
Operation Chart
Starting and Stopping the Engine-3.0 MPI ECT
Starting and Stopping the Engine
Starting the Engine
Starting the Engine after Stopped While in Gear
Stopping the Engine
Starting and Stopping the Engine-3.0 TKS
Stopping the Engine
Gear
Starting the Engine after It Has Been Stopped While in
Drain Plug and Bilge Pump
Freezing Temperature Operation
Section 2 - on the Water
Starting the Engine after It Has Been Stopped While in Gear
Throttle Only Operation
Trailering the Boat
High-Speed and High-Performance Operation
Passenger Safety in Pontoon Boats and Deck Boats
Boats Having an Open Front Deck
Boats with Front-Mounted, Raised Pedestal Fishing Seats
Protecting People in the Water
While Boat Is Stationary
While You Are Cruising
Impact with Underwater Hazards
Drive Unit Impact Protection
Wave and Wake Jumping
Conditions Affecting Operation
Cavitation
The Bottom of the Boat
Ventilation
Weight Distribution (Passengers and Gear) Inside the Boat
Elevation and Climate
Propeller Selection
Getting Started-3.0 MPI ECT
20-Hour Break-In Period
After Break-In Period
End of First Season Checkup
Getting Started-3.0 TKS
20-Hour Break-In Period
After Break-In Period
Section 3 - Specifications
Specifications-3.0 MPI ECT
Engine Specifications-3.0 MPI ECT
Fuel Requirements
Fuel Ratings
Using Reformulated (Oxygenated) Gasoline (USA Only)
Bu16 Butanol Fuel Blends
Engine Oil
Gasoline Containing Alcohol
Methanol and Ethanol Fuel Blends
Engine
Fluid Specifications
Sterndrives
Specifications-3.0 TKS
Engine Specifications-3.0 TKS
Fuel Requirements
Fuel Ratings
Gasolines Containing Alcohol
Using Reformulated (Oxygenated) Gasolines (USA Only)
Engine
Engine Oil
Fluid Specifications
Sterndrives
Section 4 - Maintenance
General Information
Owner/Operator Responsibilities
Dealer Responsibilities
Maintenance
Do-It-Yourself Maintenance Suggestions
Section 4 - Maintenance
Inspection
Sealed Carburetor Mixture Screw
Maintenance Schedules-3.0 MPI ECT
Routine Maintenance
Section 4 - Maintenance
Scheduled Maintenance
Section 4 - Maintenance
Scheduled Maintenance Procedures Specifically for 3.0 MPI ECT
Cleaning the Flame Arrestor
Cleaning the IAC Muffler
Section 4 - Maintenance
Inspecting the Fuel Pump Sight Tube
Section 4 - Maintenance
Drive Belts
Alternator Belt
Checking
Power Steering Pump Drive Belt
Replacing Belts on Front Mount Models
Section 4 - Maintenance
Alternator Belt
Power Steering Pump Drive Belt
Replacing Belts on Side Mount Models
Maintenance Schedules-3.0 TKS
Routine Maintenance
Section 4 - Maintenance
Scheduled Maintenance
Section 4 - Maintenance
Scheduled Maintenance Procedures Specifically for 3.0 TKS
Cleaning the Flame Arrestor
Section 4 - Maintenance
Changing
Positive Crankcase Ventilation Valve (PCV)
Fuel Pump Sight Tube Inspection
Section 4 - Maintenance
Drive Belts
Alternator Belt
Checking
Power Steering Pump Drive Belt, if Equipped
Replacing - Front Mount Models
Section 4 - Maintenance
Alternator Belt
Power Steering Pump Drive Belt, if Equipped
Replacing - Side Mount Models
Changing the Water-Separating Fuel Filter
Section 4 - Maintenance
Section 4 - Maintenance
Engine Oil-3.0 MPI ECT
Checking and Filling
Changing the Oil and Filter
Section 4 - Maintenance
Engine Oil-3.0 TKS
Changing the Oil and Filter
Checking and Filling
Power-Assisted Steering Fluid-3.0 MPI ECT
Checking
Filling
Changing
Power-Assisted Steering Fluid-3.0 TKS
Checking
Filling
Engine Coolant-3.0 MPI ECT
Checking
Changing
Filling
Engine Coolant-3.0 TKS
Checking
Changing
Filling
Alpha Sterndrive Gear Lube
Checking
Filling
Changing
Power Trim Fluid
Checking
Filling
Changing
Lubrication
Steering System
Throttle Cable-3.0 MPI ECT
Shift Plate Control Cable Lubrication
Throttle Cable-3.0 TKS
Driveshaft Extension Models
Driveshaft U-Joint Splines and O-Rings
Driveshaft U-Joint Splines and O-Rings (Sterndrive Unit Removed)
Engine Coupler
Removed)
Propellers
Alpha Propeller Installation
Alpha Propeller Removal
Propeller Repair
Flushing the Power Package
Flushing Attachments
Sterndrive Water Pickups
Battery
Corrosion Protection
Painting Your Power Package
Section 5 - Storage
Models
Preparing Power Package for Storage-Carburetor
Cold Weather or Extended Storage
Reformulated (Oxygenated) Gasolines (U.S.A. Only)
Fuel Containing Alcohol
Preparing Power Package for Storage-MPI Models
Section 5 - Storage
Engine and Fuel System Preparation
Special Fuel MIX
Engine and Fuel System Preparation
Preparing Power Package for Storage-Carburetor Models
Draining the Seawater System
Draining the 3.0 MPI ECT Seawater System
Single-Point Drain System
Draining the Seawater Section of Models with Closed Cooling
Draining the 3.0 TKS Seawater System
Single Point Drain System
Draining the Seawater Section of Models with Closed Cooling
Clearing Clogged Blue Drain Hoses
Draining the Sterndrive
Battery Storage
Recommissioning the Power Package
Section 6 - Troubleshooting
Troubleshooting Information and Charts Specifically for 3.0 MPI ECT
Diagnosing EFI Problems
Engine Guardian System
Starter Motor will Not Crank Engine, or Cranks Slowly
Engine will Not Start or Is Hard to Start
Engine Runs Rough, Misses, or Backfires
Poor Performance
Troubleshooting Charts Specifically for 3.0 TKS
Starter Motor will Not Crank Engine, or Cranks Slow
Engine will Not Start or Is Hard to Start
Engine Runs Rough, Misses, or Backfires
Poor Performance
Excessive Engine Temperature
Troubleshooting Charts for 3.0 MPI ECT and 3.0 TKS
Battery will Not Recharge
Insufficient Engine Temperature
Low Engine Oil Pressure
Power Trim Does Not Operate (Motor Does Not Operate)
Remote Control Is Difficult to Move, Has Excessive Play, or Makes Unusual Sounds
Steering Wheel Jerks or Is Difficult to Turn
Power Trim Does Not Operate (Motor Operates but Sterndrive Unit Does Not Move)
Section 7 - Customer Assistance Information
Attention Required after Submersion
Local Repair Service
Owner Service Assistance
Parts and Accessories Inquiries
Replacement Service Parts
Resolving a Problem
Contact Information for Mercury Marine Customer Service
Service Away from Home
Stolen Power Package
Customer Service Literature
English Language
Other Languages
Ordering Literature
United States and Canada
Outside the United States and Canada
Section 8 - Checklists
Predelivery Inspection (PDI)
Customer Delivery Inspection (CDI)
Section 9 - Maintenance Log
Scheduled Maintenance Log
Vessel Maintenance Notes
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Sterndrive Models
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Chapters
Table of Contents
5
Section 2 - On the Water 2
25
Section 3 - Specifications
37
Section 4 - Maintenance
45
Section 5 - Storage
81
Section 6 - Troubleshooting
95
Section 7 - Customer Assistance Information
101
Table of Contents
Troubleshooting
Section 6 - Troubleshooting
95
Troubleshooting Information and Charts Specifically for 3.0 MPI ECT
96
Engine Runs Rough, Misses, or Backfires
97
Engine Runs Rough, Misses, or Backfires
98
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