F2.5B Owner’s Manual - Read this manual carefully before operating - Safety, operation & maintenance

Oct 23, 2026

F2.5B Owner’s Manual explains safe operation, maintenance, and care for a Yamaha outboard motor. It highlights safety-alert warnings, notices to prevent damage, and practical tips that clarify procedures. The manual covers boating safety topics such as collisions, weather awareness, and passenger handling, followed by general information including identification numbers and conformity markings. It also outlines core specifications and installation requirements like horsepower rating, mounting, propeller selection, engine oil and fuel requirements, components, and fuel-system parts.

LanguageEnglish

CategoryHealthcare

FormatPDF

Pages74

Reading Time3 h 6 min

AccessFree to download

Safety information

Outboard motor safety

Propeller

Rotating parts

Hot parts

Electric shock

Engine shut-off cord (lanyard)

Gasoline

Gasoline exposure and spills

Carbon monoxide

Modifications

Boating safety

Alcohol and drugs

Personal flotation devices (PFDs)

People in the water

Passengers

Overloading

Avoid collisions

Collisions with floating or submerged objects

Weather

Passenger training

Boating safety publications

Laws and regulations

General information

Identification numbers record

Outboard motor serial number

EC Declaration of Conformity (DoC)

CE Marking

Read manuals and labels

Warning labels

Specifications and requirements

Specifications

Installation requirements

Boat horsepower rating

Mounting outboard motor

Propeller selection

Engine oil requirements

Fuel requirements

Gasoline

Anti-fouling paint

Outboard motor disposal requirements

Emergency equipment

Components

Components diagram

Fuel tank (built-in fuel tank)

Fuel cock

Tiller handle

Gear shift lever

Throttle grip

Throttle indicator

Throttle friction adjuster

Engine shut-off cord (lanyard) and clip

Engine stop button

Pull-type choke knob

Manual starter handle

Steering friction adjuster

Trim rod (tilt pin)

Tilt support lev

F2.5B OWNER’S MANUAL Read this manual carefully before operating this outboard motor. 6EG-F8199-74-E0 Read this manual carefully before operating this outboard motor. Keep this manual onboard in a waterproof bag when boating. This manual should stay with the outboard motor if it is sold. EMU25108 To the owner Thank you for selecting a Yamaha outboard motor. This Owner’s Manual contains information needed for proper operation, maintenance and care. A thorough understanding of these simple instructions will help you obtain maximum enjoyment from your new Yamaha. If you have any question about the operation or maintenance of your outboard motor, please consult a Yamaha dealer. In this Owner’s Manual particularly important information is distinguished in the following ways. : This is the safety alert symbol. It is used to alert you to potential personal injury hazards. Obey all safety messages that follow this symbol to avoid possible injury or death. EWM00782 A WARNING indicates a hazardous situation which, if not avoided, could result in death or serious injury. ECM00702 A NOTICE indicates special precautions that must betaken to avoid damage to the outboard motor or other property. TIP: A TIP provides key information to make procedures easier or clearer. Yamaha continually seeks advancements in product design and quality. Therefore, while this manual contains the most current product information available at the time of printing, there may be minor discrepancies between your machine and this manual. If there is any question concerning this manual, please consult your Yamaha dealer. To ensure long product life, Yamaha recommends that you use the product and perform the specified periodic inspections and maintenance by correctly following the instructions in the owner’s manual. Any damage resulting from neglect of these instructions isnot covered by warranty. Some countries have laws or regulations restricting users from taking the product out of the country where it was purchased, and it may be impossible to register the product in the destination country. Additionally, the warranty may not apply in certain regions. When planning to take the product to another country, consult the dealer where the product was purchased for further information. If the product was purchased used, please consult your closest dealer for customer reregistration, and to be eligible for the specified services. TIP: The F2 .5BMH and the standard accessories are used as a base for the explanations and illustrations in this manual. Therefore some items may not apply to every model. EMU45001 F2.5B OWNER’S MANUAL ©2020 by Yamaha Motor Co., Ltd. 1st Edition, December 2019 All rights reserved. Any reprinting or unauthorized use without the written permission of Yamaha Motor Co., Ltd. is expressly prohibited. Printed in Thailand Safety information............................. 1 Outboard motor safety .................... 1 Propeller ............................................. 1 Rotating parts..................................... 1 Hot parts ............................................ 1 Electric shock ..................................... 1 Engine shut-off cord (lanyard) ............ 1 Gasoline ............................................. 1 Gasoline exposure and spills ............. 1 Carbon monoxide .............................. 2 Modifications ...................................... 2 Boating safety ................................. 2 Alcohol and drugs .............................. 2 Personal flotation devices (PFDs) ...... 2 People in the water ............................ 2 Passengers......................................... 2 Overloading ........................................ 2 Avoid collisions .................................. 3 Collisions with floating or submerged objects ............................................ 3 Weather ....................................

FAQs

What should the owner do before operating the outboard motor?

Read the manual carefully before operating the outboard motor, and keep the manual onboard in a waterproof bag when boating.

How does the manual present safety and damage-prevention information?

Important information is distinguished with a safety alert symbol for personal injury hazards, WARNING for hazardous situations, and a NOTICE section for special precautions to avoid damage.

What topics are included in the specifications and installation section?

It covers specifications and installation requirements such as boat horsepower rating, mounting the outboard motor, propeller selection, engine oil and fuel requirements, anti-fouling paint, and disposal requirements.

Oct 23, 2026

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