Yamaha F25C User Manual

Printed in Japan
April 2003-0.5 × 0.1 !
65W-28199-17
(F25AMH, F25AEH, F25AE, F25AET, FT25BET)
(E)
Printed on recycled paper
F25C
T25C
OWNER’S MANUAL
U.S.A.Edition
LIT-18626-05-46
65W-9-17 hyoshi 3/10/03 14:46 Page 1

Yamaha F25C Specifications

General

Brand	Yamaha
Model	F25C
Category	Outboard Motor
Language	English

Summary

Chapter 1 General Information

Identification Numbers Record

Details on outboard motor serial number and key identification number.

Emission Control Information

Information regarding EPA and California emission regulations for North American models.

Star Labels Explained

Explanation of CARB star labels for low, very low, and ultra low emissions.

Safety Information and Precautions

Essential safety guidelines for operating the outboard motor and boat.

Important Labels on the Outboard Motor

Description and explanation of warning and caution labels affixed to the motor.

Basic Boating Rules

Fundamental rules of the road for navigation and interactions with other vessels.

Fueling Instructions and Gasoline Types

Guidance on safe refueling practices and recommended gasoline types.

Engine Oil Recommendations

Specifies recommended engine oil types and quantities for the 4-stroke motor.

Battery Requirements for Electric Start Models

Details on minimum specifications for batteries used with electric start models.

Propeller Selection Guide

Information on choosing the correct propeller for optimal motor performance.

Start-in-Gear Protection

Explanation of the safety feature preventing engine start in gear.

Chapter 2 Basic Components Overview

Main Components of the Outboard Motor

Identification and illustration of the primary parts of the outboard motor.

Operations of Controls and Functions

Detailed explanation of various controls and their functions on the outboard motor.

Fuel Tank and Related Components

Description of the fuel tank, its cap, meter, and vent screw.

Gear Shift Lever and Starting Mechanisms

How to operate the gear shift lever, recoil starter, and starter button.

Tiller Handle Controls

Explanation of functions on the tiller handle: throttle, friction, and stop switch.

Remote Control System Components

Overview of the remote control lever, neutral interlock, and main switch.

Power Trim/Tilt Switch Operation

How to use the power trim/tilt switch to adjust motor angle.

Warning Indicator and Tachometer

Explanation of warning indicators and the digital tachometer display.

Warning System Functions

Details on how the overheat and other warning systems activate.

Chapter 3 Operation Guide

Outboard Motor Installation

Procedures and precautions for correctly installing the outboard motor.

Mounting and Clamping the Motor

Guidelines for mounting height and securely clamping the motor to the transom.

Engine Break-In (Running-In) Procedure

Instructions for the initial break-in period to ensure engine longevity.

Pre-Operation Checks

Essential checks to perform before starting the engine for safe operation.

Starting the Engine Safely

Step-by-step guide for starting the engine, including tiller and remote control models.

Engine Warm-Up Procedure

How to properly warm up the engine at idling speed before operation.

Shifting Gears: Forward and Reverse

Instructions for engaging forward and reverse gears safely.

Stopping the Engine Correctly

Procedure for shutting down the engine, including cooling off and securing.

Trimming the Outboard Motor

How to adjust the motor's trim angle for optimal performance and efficiency.

Tilting the Motor Up and Down

Procedures for manually or power-tilting the outboard motor.

Cruising in Shallow Water

Techniques for operating the motor in shallow water conditions.

Cruising in Other Conditions

Specific considerations for operating in salt or turbid water.

Chapter 4 Maintenance Procedures

Specifications and Technical Data

Detailed specifications for the outboard motor, including dimensions and performance.

Transporting and Storing the Outboard Motor

Guidelines for safely trailering, transporting, and storing the outboard motor.

Periodic Maintenance Schedule

Overview of recommended maintenance tasks and their frequency.

Maintenance Chart and Actions

A table outlining maintenance tasks, actions, and intervals.

Greasinq Points and Procedure

Identification of greasing points and instructions for applying marine grease.

Spark Plug Cleaning and Adjustment

How to inspect, clean, and adjust the spark plug gap.

Changing Engine Oil

Step-by-step instructions for draining and refilling the engine oil.

Replacing Fuses

Procedure for replacing blown fuses in electric start models.

Checking the Propeller

Guide to inspecting the propeller for damage, wear, and proper installation.

Changing Gear Oil

Instructions for draining and refilling the gear oil in the lower unit.

Inspecting and Replacing Anodes

Checking sacrificial anodes for corrosion protection and replacement.

Checking the Battery

Guidelines for checking battery condition, electrolyte level, and safety.

Cleaning Cooling-Water Passages

Procedure for flushing the cooling system with fresh water.

Chapter 5 Trouble Recovery

Troubleshooting Common Engine Problems

Chart detailing possible causes and remedies for engine starting and running issues.

Temporary Action in Emergency Situations

Emergency procedures for common issues like impact damage or system failures.

Handling Impact Damage

Steps to take if the outboard motor sustains damage from a collision.

Manual Tilting if Power Trim/Tilt Fails

Procedure to manually tilt the motor if the power trim/tilt system is inoperable.

Emergency Starting with Starter Rope

Instructions for starting the engine using an emergency starter rope.

Treatment for Submerged Motors

Steps to take to minimize damage if the outboard motor is submerged.

Chapter 6 Index

Alphabetical Index of Topics

An alphabetical listing of all topics covered in the manual with corresponding page numbers.

Important Warranty Information for U.S.A. and Canada

Warranty Registration Process

Steps to ensure your new Yamaha is registered for warranty coverage.

Contact Information for Yamaha Support

Contact details for Yamaha Motor Corporation U.S.A. and Canada.

Yamaha Three-Year Limited Warranty

Warranty Period and Coverage Details

Details on warranty duration, covered components, and exclusions.

Obtaining Warranty Repairs

Procedures for getting warranty repairs and customer responsibilities.

General Exclusions From Warranty

List of conditions and actions that void or are not covered by the warranty.

Warranty Information for Use Outside U.S.A. or Canada

International Use Warranty Guidelines

Guidance on warranty coverage and service when using Yamaha outside North America.