Yamaha 40 User Manual

40V
40Y
50H
OWNER’S MANUAL
MANUEL D’UTILISATION
MANUAL DEL PROPIETARIO
63B-28199-78
GB
F
ES
40V
40Y
50H
BETRIEBSANLEITUNG
INSTRUCTIEBOEKJE
MANUALE PER IL PROPRIETARIO
63B-28199-78
D
NL
I
63B-9-78-hyoshi 3/3/03 9:52 PM Page 1

Yamaha 40 Specifications

General

Full Throttle RPM Range	5000 - 6000 rpm
Fuel Induction System	EFI (Electronic Fuel Injection)
Starting System	Electric
Displacement	747cc
Prop Shaft Horsepower	40hp
Ignition System	TCI

Summary

Chapter 1 GENERAL INFORMATION

Identification Numbers Record

Records for outboard motor serial number and key number.

Safety Information

Essential safety precautions for operating the outboard motor.

Fueling Instructions

Guidelines for safely refueling the outboard motor.

Battery Requirement

Specifications for the required battery for electric start models.

Propeller Selection

Guidance on choosing the correct propeller for optimal performance.

Start-In-Gear Protection

Explanation of the safety feature preventing engine start in gear.

Chapter 2 BASIC COMPONENTS

Main Components Overview

Identification of key external parts of the outboard motor.

Control Operations and Functions

Description of how to operate various controls and functions.

Multifunction Tiller Handle Operation

Details on using the tiller handle for motor control.

Remote Control Operation

Instructions for operating the remote control system.

Engine Stop Lanyard Switch

How to use the safety lanyard to stop the engine.

Power Trim/Tilt Switch

Operating the power trim and tilt switch for motor angle adjustment.

Choke Knob Operation

How to use the choke knob for starting the engine.

Steering Friction Adjustment

Adjusting steering friction for comfortable operation.

Trim Tab Adjustment

Adjusting the trim tab for optimal boat handling.

Adjusting Trim Angle

Detailed steps for adjusting the motor's trim angle.

Tilting Up/Down Procedure

Steps for manually tilting the motor up or down.

Checking the Propeller

Inspection of the propeller for wear or damage.

Removing the Propeller

Step-by-step guide for removing the propeller.

Installing the Propeller

Step-by-step guide for installing the propeller.

Changing Gear Oil

Procedure for draining and refilling the gear case oil.

Inspecting and Replacing Anodes

Checking and replacing sacrificial anodes for corrosion protection.

Battery Care

Safety precautions and procedures for battery maintenance.

Checking Bolts and Nuts

Verifying that bolts and nuts are properly tightened.

Exterior Motor Maintenance

Cleaning and checking the exterior of the outboard motor.

Chapter 3 OPERATION

Outboard Motor Installation

Precautions and guidelines for installing the outboard motor.

Mounting the Outboard Motor

Instructions for correctly mounting the outboard motor on the transom.

Clamping the Outboard Motor

Securely attaching the outboard motor to the transom.

Filling Fuel and Engine Oil

Procedures for filling the fuel and oil tanks.

Operation After Long Storage

Steps for operating the engine after extended storage.

Breaking In the Engine

Procedure for breaking in a new engine for optimal performance.

Starting the Engine

Detailed steps for safely starting the outboard motor.

Tiller Control Model Starting Procedure

Starting instructions specific to tiller control models.

Remote Control Model Starting Procedure

Starting instructions specific to remote control models.

Warming Up the Engine

Procedure for warming up the engine before operation.

Shifting Gears

Instructions for shifting between forward, neutral, and reverse gears.

Engaging Forward Gear

How to engage forward gear using tiller or remote controls.

Engaging Reverse Gear

How to engage reverse gear using tiller or remote controls.

Stopping the Engine

Proper procedure for shutting down the outboard motor.

Trimming the Outboard Motor

Adjusting the motor angle for optimal boat trim.

Adjusting Trim Angle

Detailed steps for adjusting the motor's trim angle.

Power Trim/Tilt Model Operation

Using the power trim and tilt switch for angle adjustment.

Trim Angle Settings and Boat Handling

How trim angle affects boat performance and handling.

Tilting Up/Down Procedure

Steps for manually tilting the motor up or down.

Cruising in Shallow Water

Guidelines for operating the motor in shallow water conditions.

Cruising in Other Conditions

Recommendations for operating in salt and turbid water.

Chapter 4 MAINTENANCE

Specifications

Technical specifications for the outboard motor models.

Transporting and Storing the Motor

Procedures for safely transporting and storing the outboard motor.

Storing the Outboard Motor

Detailed steps for preparing the motor for long-term storage.

Periodic Maintenance Schedule

Guidelines for regular maintenance tasks and intervals.

Replacement Parts

Information on using genuine Yamaha replacement parts.

Maintenance Chart

Summary table of maintenance tasks and their recommended frequency.

Greasing Points

Locations and types of grease for lubrication.

Cleaning and Adjusting Spark Plugs

Procedure for inspecting, cleaning, and adjusting spark plugs.

Checking the Fuel System

Inspecting the fuel system for leaks and proper function.

Cleaning the Fuel Filter

Step-by-step guide for cleaning the fuel filter.

Inspecting Idling Speed

Procedure for checking and adjusting engine idling speed.

Replacing Fuses

Instructions for replacing blown fuses in electric start models.

Checking Power Trim and Tilt System

Verifying the proper operation of the power trim and tilt system.

Inspecting and Replacing Anodes

Checking and replacing sacrificial anodes for corrosion protection.

Battery Care

Safety precautions and procedures for battery maintenance.

Checking Bolts and Nuts

Verifying that bolts and nuts are properly tightened.

Exterior Motor Maintenance

Cleaning and checking the exterior of the outboard motor.

Chapter 5 TROUBLE RECOVERY

Troubleshooting Guide

Basic checks and remedies for common motor problems.

Starter Will Not Operate

Using the emergency starter rope when the starter fails.

Engine Fails to Operate

Troubleshooting for a cold engine that fails to start.

Cold Engine Starting Issues

Specific procedures for a cold engine that won't start.

Treatment of Submerged Motor

Steps to take if the outboard motor is submerged.

Temporary Actions in Emergency

Immediate steps to take in emergency situations.

Handling Impact Damage

Procedure to follow after the motor sustains impact damage.

Power Trim/Tilt Not Operating

Manual procedures when power trim/tilt fails.