Mercury 300R HD CMS Mechanical - Stopping the Engine

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Stopping the Engine

Reduce the engine speed and shift the outboard to neutral position. Turn the

ignition key to "OFF" position.

26843

OFF

START

OPERATION

eng 45

Main Page

Table of Contents7
Boater's Responsibilities11
Before Operating Your Outboard11
Boat Horsepower Capacity11
General Information11
High-Speed and High-Performance Boat Operation12
Propeller Selection12
Outboard Remote Control Models14
Lanyard Stop Switch15
Protecting People in the Water17
Passenger Safety Message - Pontoon Boats and Deck Boats18
Wave and Wake Jumping19
Impact with Underwater Hazards20
Exhaust Emissions21
Selecting Accessories for Your Outboard23
Safe Boating Recommendations23
Recording Serial Number26
Specifications-300R HD27
Component Identification29
Gearcase Identification30
Trailering Boat/Outboard31
Transporting31
Fuel Requirements32
Fuel and Oil32
Fuel Additives33
Low Permeation Fuel Hose Requirement33
Fuel Demand Valve (FDV) Requirement33
Engine Oil Recommendations-Race (R) Models34
Checking and Adding Engine Oil34
Remote Control Features38
Warning System38
Adaptive Speed Control38
Features and Controls38
Power Trim and Tilt41
Important Daily Inspection before each Use46
Prestarting Check List46
Operating in Freezing Temperatures46
Operation46
Operating in Saltwater or Polluted Water47
Operating at High Elevations47
Effects of Elevation and Weather on Performance47
Setting Trim Angle While Running Engine at Idle Speed48
Engine Break-In Procedure49
Fuel Supply Module Priming Procedure49
Starting the Engine51
Gear Shifting54
Stopping the Engine55
Cleaning Care Recommendations56
Maintenance56
EPA Emissions Regulations58
Inspection and Maintenance Schedule59
300R HD Models Maintenance Schedule Decal61
Flushing the Cooling System62
Top Cowl Removal and Installation62
Battery Inspection64
Battery Cables and Clean Power Harness65
Fuel System67
Corrosion Control Anode69
Propeller Replacement-31.75 MM (1-1/4 In.) Diameter Propeller Shaft70
Spark Plug Inspection and Replacement71
Fuses74
Alternator Drive Belt76
Lubrication Points76
Trim Thrust Guide Wear Pad78
Checking Power Trim Fluid (Single-Ram Trim)79
Checking Hydraulic Steering Fluid80
Checking Power Steering Fluid80
Changing Engine Oil and Filter81
Checking Engine Oil Level86
Exhaust Water Strainer Inspection87
Gearcase Lubricant88
Storage Preparation91
Protecting External Outboard Components91
Protecting Internal Engine Components92
Gearcase92
Positioning Outboard for Storage92
Battery Storage92
Starter Motor will Not Crank the Engine93
Engine will Not Start93
Engine Runs Erratically93
Troubleshooting93
Performance Loss94
Battery will Not Hold Charge94
Service Assistance95
Owner Service Assistance95
Ordering Literature97
Maintenance Log99

Mercury 300R HD CMS Mechanical - Stopping the Engine

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