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Yamaha DT501988 User Manual

Yamaha DT501988
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~YAMAHA
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OWNER'S
MANUAL
38
K-28199-
71

Table of Contents

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Yamaha DT501988 Specifications

General IconGeneral
Year1988
ManufacturerYamaha
ModelDT50
Displacement49 cc
Fuel SystemCarburetor
IgnitionCDI
Final DriveChain
Front SuspensionTelescopic fork
Front BrakeDrum
Rear BrakeDrum
Engine TypeSingle-cylinder, two-stroke
Bore x Stroke40.0 mm x 39.2 mm
Starting SystemKick
Rear SuspensionSwingarm

Summary

Owner's Manual

Identification Numbers Record

Key Number

Record your key identification number for reference.

Vehicle Number

Record your vehicle identification number for ordering parts or reference.

Engine Number

Record your engine serial number for ordering parts or reference.

Introduction

Location of the Important Labels

Description

Motorcycle Identification

Control Functions

Main Switch

Controls ignition and lighting systems; operation of OFF, ON, and LOCK positions.

Indicator Lights

Explains the function of turn, neutral, oil warning, and high beam indicator lights.

Oil Warning Light Checking Method

Step-by-step procedure to check the oil warning light functionality.

Speedometer and Odometer

Details the speedometer, odometer, and tachometer functions and the red zone warning.

Engine Temperature Gauge

Indicates coolant temperature; warns to stop if needle reaches red zone.

Handlebar Switches

Describes the operation of the lights (dimmer), horn, and turn signal switches.

Clutch Lever

Location and operation of the clutch lever for engaging/disengaging the clutch.

Change Pedal

Operation of the gear shift pedal for changing gears in the transmission.

Front Brake Lever

Location and operation of the front brake lever.

Rear Brake Pedal

Location and operation of the rear brake pedal.

Fuel Cock

Explains the three positions (OFF, ON, RES) of the fuel cock.

Starter Knob (Choke)

Operation of the starter knob for richer fuel mixture during cold starts.

Kick Starter

Procedure for starting the engine using the kick starter.

Steering Lock

How to lock and unlock the steering using the main switch key.

Helmet Holder

Procedure for opening and locking the helmet holder.

Sidestand

Description of the sidestand and its ignition cut-off system.

Sidestand Switch Operation Check

Steps to verify the correct functioning of the sidestand switch.

Pre-Operation Checks

Periodic Maintenance and Minor Repair

Tool Kit

Describes the tools provided and the need for a torque wrench.

Torque Specifications

Transmission Oil Level Check

Transmission Oil Replacement

Cooling System

Fuel Cock Cleaning

Air Filter

Carburetor Adjustment

Idle Speed Adjustment

Throttle Cable Adjustment

Spark Plug Inspection

Front Brake Adjustment

Rear Brake Adjustment

Brake Light Switch Adjustment

Checking the Brake Shoes

Clutch Adjustment

Mechanism Adjustment

Drive Chain Slack Check

Drive Chain Slack Adjustment

Drive Chain Lubrication

Cable Inspection and Lubrication

Throttle Cable and Grip Lubrication

Autolube Pump Adjustment

Brake and Change Pedals

Brake and Clutch Levers

Sidestand

Front Fork Inspection

Rear Shock (Monocross suspension "De Carbon" system)

Steering Inspection

Wheel Bearings

Battery

Replenishing the Battery Fluid

Fuse Replacement

Replacing the Headlight Bulb

Headlight Beam Adjustment

Replacing the Taillight and Flasher Light Bulb

Front Wheel Removal

Front Wheel Installation

Rear Wheel Removal

Rear Wheel Installation

Troubleshooting

Troubleshooting Chart

Cleaning and Storage

Cleaning

Procedures for thoroughly cleaning the motorcycle.

Storage

Preventive procedures for long-term storage to guard against deterioration.

Specifications

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