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URAL Motorcycles IMZ-8.103-40 User Manual

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URAL® MOTORCYCLES 1998 Models
IMZ-8.103-10 - Deco Classic, Italia
IMZ-8.103-40 - Tourist
IMZ-8.107 - Sportsman
IMZ-8.123 - Solo
IMZ-8.503 - Utility
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URAL Motorcycles IMZ-8.103-40 Specifications

General IconGeneral
Displacement649 cc
Final DriveShaft drive
Fuel SystemCarburetor
Seat Height785 mm
Torque52 Nm at 4000 rpm
Transmission4-speed manual
Fuel Capacity19 liters
Weight335 kg
Wheelbase1500 mm
Tires3.75-19
Engine TypeAir-cooled, four-stroke, OHV, flat twin

Summary

Introduction

Important Notice!

Chapter 1 Specifications

General & Dimensions

Key general specifications, dimensions, and weight ratings for the motorcycle.

Engine & Carburetor Details

Specifications for the engine, its components, and the carburetor system.

Electrical Equipment

Specifications for the motorcycle's ignition, lighting, and power supply.

Transmission & Drivetrain

Details on clutch, gearbox, gear ratios, and final drive.

Fluid Capacities

Capacities for engine oil, gearbox, final drive, and forks.

Running Gear, Clearances & Adjustments

Specifications for frame, suspension, brakes, tires, clearances, and adjustments.

Torque & Unit Conversions

Torque values for fasteners and unit conversion tables.

Chapter 2 Motorcycle Control & Instrumentation

Controls and Instruments Overview

Identification of controls and instruments with a diagram.

Detailed Control Descriptions

Explanation of clutch, brake, kick, gear shift, and ignition controls.

Ignition Lock and Switches

Operation of ignition lock, kill switch, and light/turn signal switches.

Steering Damper and Choke

Function and adjustment of the steering damper and choke lever.

Chapter 3 Engine Operation and Maintenance

Pre-Trip Preliminaries

Essential checks before each trip, including fluid levels and cleanliness.

Starting the Engine

Procedure for starting the engine using kick starter or electric start.

Engine Operation Warnings

Warnings regarding sustained operation on one cylinder and high speed.

Operating Precautions

Precautions for shifting gears, engine braking, and riding in wet conditions.

Running-in the New Motorcycle

Procedure and speed limits for the initial 2,500 km running-in period.

Chapter 4 Brief Description of Design & Maintenance

Engine Design Overview

Description of the twin-cylinder, air-cooled engine and its main components.

Valve Timing Gear

Description of valve timing, adjustment, and engine maintenance.

Engine Lubrication System

Explanation of the dual lubrication system and maintenance procedures.

Ignition System

Details on the contactless ignition system, timing, and spark plugs.

Carburetors

Information on Mikuni carburetors, tuning, and adjustment warnings.

Chapter 5 Tuning Mikuni Carburetors VM & TM

Carburetor Components

Diagram and list of components for Mikuni VM & TM carburetors.

Carburetor Function and Air-Fuel Mixture

Explanation of carburetor function and air-fuel mixture ratios.

Carburetor Systems

Description of low-speed (pilot) and main fuel systems.

Carburetor Troubleshooting

Troubleshooting common carburetor problems like hard starting and poor idle.

Chapter 6 Power Transmission

Clutch Operation and Adjustment

Details on clutch function, engagement, and adjustment.

Gearbox with Reverse Gear

Description of gearbox parts, shafts, and gear shift mechanism.

Gearbox (Solo Motorcycle)

Specifics of the solo motorcycle gearbox, including kick starter.

Final Drive

Description and maintenance of the final drive and propeller shaft.

Propeller Shaft Drive

Details on the propeller shaft drive components.

Chapter 7 Running Gear

Motorcycle and Sidecar Frames

Description of the motorcycle and sidecar frame construction.

Spring Loaded Hydraulic Shock Absorber

Details on shock absorber function, adjustment, and maintenance.

Adjustment of Sidecar Installation

Procedure for adjusting sidecar alignment, toe-in, and lean-out.

Front Fork

Description of telescopic and leading link front forks and steering damper.

Steering Head Bearings

Importance and adjustment of steering head bearings.

Chapter 8 Wheels and Tires

Wheel and Tire Data

Specifications for tires, including pressure, load ratings, and wear limits.

Wheel Bearing Adjustment

Procedure for checking and adjusting wheel bearings.

Removing and Installing Wheels

Instructions for removing and reinstalling front and rear wheels.

Chapter 9 Control Levers and Cables

Handle Bar and Controls

Description of handlebar controls and their linkages.

Brakes System

Details on brake system components and operation.

Brake Adjustment

Procedures for adjusting front, rear, and sidecar brakes.

Control Cable Adjustment

Adjustment of clutch, brake, and throttle control cables.

Speedometer

Description of the speedometer and its drive mechanism.

Chapter 10 Electrical Equipment

Electrical System Overview

Description of power supplies, battery, and generator.

Electrical Equipment Maintenance

Maintenance for generator, spark plugs, and battery.

Electric Circuit Diagram

Wiring diagram of the motorcycle's electrical system.

Chapter 11 Maintenance of Motorcycle

General Maintenance Schedule

Summary of maintenance tasks and intervals for light and normal duty.

Lubrication Chart

Chart detailing lubrication points, lubricants, and intervals.

Required Lubricants

Recommended oils and treatments for engine, gearbox, and final drive.

Care of Motorcycle Paint

Instructions for washing, repairing, and polishing the motorcycle's paint.

Preservation and Storage

Procedures for storing the motorcycle and winter considerations.

Battery Care and Maintenance

Guidelines for battery function, charging, and storage.

Tool Set and Spare Parts List

List of included tools, spare parts, accessories, and documents.

Chapter 12 Sportsman Motorcycle with Driven Sidecar Wheel

Description of Driven Sidecar Wheel

Overview of the Sportsman model with driven sidecar wheel.

Handling Differences from Single Wheel Drive

How the driven sidecar wheel affects handling compared to single wheel drive.

Sidecar Maintenance

Maintenance specific to the sidecar, including oil changes and greasing.

Main Drive and Differential

Procedures for disassembling and assembling the main drive and differential.

Chapter 13 Learning to Ride the Ural Motorcycle with Sidecar Accessory

Sidecar Riding Techniques

Guidance on riding a three-wheeled motorcycle with a sidecar.

Safe Operating Rules

Essential safety rules for operating the motorcycle and sidecar.

Tire Data

Specifications for tires, including pressure, load ratings, and wear limits.

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