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Yamaha LF300 User Manual

Yamaha LF300
124 pages
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Read this manual carefully before operating this
outboard motor.
OWNER’S MANUAL
F225
LF225
F250
LF250
F300
LF300
F250D1
FL250D1
F300B1
FL300B1
LIT-18626-10-82
6CE-28199-36-E0
6CE-9-36-1E0.book 1 ページ 2014年11月28日 金曜日 午後2時55分
©2019 Yamaha Motor Corporation, U.S.A.

Table of Contents

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Yamaha LF300 Specifications

General IconGeneral
BrandYamaha
ModelLF300
CategoryOutboard Motor
LanguageEnglish

Summary

Important Manual Information

Safety Alert Symbol

Indicates potential personal injury hazards. Always obey safety messages following this symbol.

Safety Information

Outboard Motor Safety Precautions

Essential safety precautions to observe at all times during operation and maintenance.

Propeller Safety

Warns about the danger of propeller contact and advises stopping the engine when near water.

Rotating Parts Hazard

Highlights the risk of entanglement with moving parts, advising to keep clear.

Hot Parts Warning

Advises caution regarding hot engine parts to prevent burns.

Electric Shock Hazard

Warns against touching electrical parts during operation to prevent shock.

Power Trim and Tilt Safety

Details hazards associated with power trim/tilt operation, including crushing.

Engine Shut-Off Cord (Lanyard)

Explains the function and proper use of the engine shut-off cord to prevent runaway boats.

Gasoline Safety Precautions

Covers flammability and explosion risks of gasoline and safe refueling practices.

Boating Safety

Gasoline Exposure and Spills

Provides guidance on handling gasoline spills and first aid measures for exposure.

Carbon Monoxide Hazard

Warns about carbon monoxide in exhaust gases and advises ventilation.

General Boating Safety Precautions

Covers essential safety measures for boating, including alcohol/drugs, PFDs, and passengers.

Collision Avoidance

Details techniques for scanning, operating defensively, and avoiding collisions.

Basic Boating Rules (Rules of the Road)

Explains fundamental waterway rules for navigation and encountering other vessels.

Steering and Sailing Rules

Covers right-of-way rules between vessels, including stand-on and give-way principles.

Rules When Encountering Vessels

Details specific rules for meeting, crossing, and overtaking other vessels.

Specifications and Requirements

Specifications Overview

Lists key specifications including dimensions, weight, performance, and power unit details.

Performance Specifications

Details operating ranges, rated power, and idle speed for different engine models.

Installation Requirements

Covers crucial aspects like boat horsepower rating and proper mounting procedures.

Mounting Outboard Motor

Warns about improper mounting and emphasizes the need for experienced installation.

Digital Electronic Control Requirements

Details requirements for the digital electronic control, including start-in-gear protection.

Start-in-Gear Protection

Describes the safety feature preventing engine start unless in neutral.

Engine Oil Requirements

Provides recommended engine oil grades and quantities based on temperature.

Fuel Requirements and Types

Details recommended gasoline types, octane ratings, and warnings about ethanol.

Components

Engine Shut-Off Cord (Lanyard)

Describes the function and importance of the engine shut-off cord.

Instruments and Indicators

Overheat Alert System

Details the overheat alert, its indicator, and automatic engine speed reduction.

Low Oil Pressure Alert System

Explains the low oil pressure alert, its indicator, and engine speed reduction.

Water Separator Alert

Indicates when water accumulates in the water separator, requiring attention.

Low Battery Voltage Alert

Alerts when battery voltage drops, suggesting charging or dealer consultation.

Engine Trouble Alert

Indicates engine malfunctions and advises returning to port for diagnosis.

Low Oil Pressure Alert (Indicator)

Details the low oil pressure alert indicator and associated actions.

Overheat Alert (Indicator)

Explains the overheat alert indicator and the necessary steps to take.

Water Separator Alert (Indicator)

Describes the water separator alert indicator and actions for fuel filter water.

Engine Control System

Alert System Overview

General advice on not operating the engine if an alert device has activated.

Overheat Alert Details

Describes the overheat alert device, its indicators, and automatic speed reduction.

Low Oil Pressure Alert Details

Explains the low oil pressure alert, its indicators, and recommended actions.

Installation

Outboard Motor Mounting

Covers warnings about overpowering boats and improper motor mounting.

Operation

First-Time Operation and Engine Oil

Instructions for filling engine oil before initial operation and removing tags.

Engine Break-In Procedure

Details the 10-hour break-in procedure to ensure proper performance and longevity.

Checks Before Starting Engine

Lists pre-operation checks, including inspection of systems and fuel level.

Filling Fuel Safely

Provides detailed safety instructions for filling the fuel tank, emphasizing fire prevention.

Operating Engine Safety

Warns about exhaust gases like carbon monoxide and advises ventilation.

Starting Engine Procedure

Covers pre-start checks, security system operation, and engine start sequence.

Procedure for Starting Engine

Detailed steps for starting the engine, including safety cord and security system.

Maintenance

Changing Engine Oil

Provides instructions for changing engine oil using an oil changer or drain screw.

Changing Gear Oil

Step-by-step guide for draining and refilling gear oil in the lower unit.

Trouble Recovery

Troubleshooting Common Issues

Addresses common problems like security system issues, starter not operating, and engine starting issues.

Alert Buzzer Sounds or Indicator Lights

Diagnoses issues related to alert buzzers and indicator lights, including cooling and oil pressure.

Temporary Action in Emergency

Provides immediate steps to take if the outboard motor sustains impact damage.

Water Separator-Alert Indicator Blinks

Procedure to address the water separator alert, involving fuel filter maintenance.

Treatment of Submerged Motor

Advises immediate dealer inspection for submerged motors to prevent corrosion.

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