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Yamaha Z300A User Manual

Yamaha Z300A
90 pages
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Z300A
LZ300A
SUPPLEMENTARY
SERVICE MANUAL
292211
6D0-28197-3F-1X

Table of Contents

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Yamaha Z300A Specifications

General IconGeneral
Full Throttle RPM Range5000 - 6000 RPM
Starting SystemElectric
SteeringRemote
Trim MethodPower Trim & Tilt
ExhaustThrough Prop

Summary

General Information

Predelivery Checks

Essential checks to be performed before delivering the outboard motor.

Specifications

Tightening Torques

Specifies torque values for various fasteners and components.

Periodic Checks and Adjustments

Maintenance Interval Chart

Provides a schedule for regular maintenance tasks based on operating hours.

Power Unit

Lower Unit

Troubleshooting

Self-Diagnosis Procedures

Steps for performing self-diagnosis on the electronic control system.

Wiring Diagram

Schematic illustrating electrical connections and layouts.

General Information

Cooling Water Pilot Hole and Test Run

Procedure for checking cooling water discharge and performing a test run.

Predelivery Checks

Fuel System Check

Procedure to verify fuel hose connections and fuel tank level.

Gear and Engine Oil Level Checks

Steps to check the oil levels in the gear and engine oil systems.

Battery Condition and Connection Check

Verification of battery capacity, electrolyte level, and secure connections.

Start and Stop Switch Functionality

Checking the operation of the engine start switch and stop lanyard.

General Specifications

Performance Metrics

Key performance indicators like maximum output and operating range.

Maintenance Specifications

Power Unit Specifications

Details on compression pressure and cylinder dimensions.

Lower Unit Maintenance Parameters

Gear backlash and shim specifications for the lower unit.

Tightening Torques

Fuel System Torque Specifications

Torque values for fuel system components like pump and switch screws.

Power Unit Torque Specifications

Torque values for power unit fasteners, including battery terminal and starter motor.

Lower Unit Torque Specifications (Regular Rotation)

Torque values for components of the regular rotation lower unit.

Lower Unit Torque Specifications (Counter Rotation)

Torque values for components of the counter rotation lower unit.

Bracket Unit Torque Specifications

Torque values for bracket unit mounting bolts and adapters.

Power Trim and Tilt Unit Torque Specifications

Torque values for power trim and tilt unit components.

Special Service Tools

Drive Train Adjustment Tools

Tools for adjusting drive train components like pinion height.

PTT Oil Pressure Gauge Assembly

Assembly for measuring PTT hydraulic pressure.

Diagnostic Flash Indicator B

Tool used for diagnosing electronic control system faults via flash codes.

Oil Injection System

Lower Unit

Checking for Air Leakage

Procedure to test the lower unit for air leaks using a special tool.

General

Power Unit

Removing the Power Unit

Step-by-step instructions for safely removing the power unit.

Installing the Power Unit

Procedure for installing the power unit after service or repair.

Installing Rotating Components

Procedures for installing the flywheel magnet and related parts.

Lower Unit

Selecting the Pinion Shims

Procedure for selecting and installing pinion shims for proper gear meshing.

Calculating Pinion Shim Thickness

Formula and examples for calculating the correct pinion shim thickness.

Backlash Measurement (Regular Rotation)

Method for measuring gear backlash in regular rotation models.

Propeller Shaft Housing (Counter Rotation Model)

Forward Gear Backlash Specification

Specification for forward gear backlash and related shim thickness.

Drive Shaft and Lower Case (Counter Rotation Model)

Shimming (Counter Rotation Model)

Backlash (Counter Rotation Model)

Bracket Unit

Power Trim and Tilt Unit Service

Procedures for checking hydraulic pressure in the power trim and tilt unit.

Upper Case, Steering Arm, Swivel Bracket, and Clamp Brackets

Power Trim and Tilt Unit

Hydraulic Pressure Testing Procedures

Steps for testing hydraulic pressure, including pressure specifications.

Electrical Components

Electrical Systems

Self-diagnosis

Diagnosing the Electronic Control System

Using the diagnostic flash indicator to identify system malfunctions.

Troubleshooting

Diagnostic Codes and Symptoms

Table correlating diagnostic flash codes with specific symptoms.

Wiring Diagram

Z300AETO, LZ300AETO Schematic

Main wiring schematic diagram for the Z300AETO and LZ300AETO models.

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