KTM 50 SX 2020 User Manual

MEANS OF REPRESENTATION 1
5
1.1 Symbols used
The meaning of specific symbols is described below.
Indicates an expected reaction (e.g. of a work step or a function).
Indicates an unexpected reaction (e.g. of a work step or a function).
All work marked with this symbol requires specialist knowledge and technical understanding. In
the interest of the safety of your child, have these jobs performed in an authorized KTM work-
shop. There, your motorcycle will be optimally cared for by specially trained experts using the
specialist tools required.
Indicates a page reference (more information is provided on the specified page).
Indicates information with more details or tips.
Indicates the result of a testing step.
1.2 Formats used
The typographical formats used in this document are explained below.
Proprietary name Indicates a proprietary name.
Name
®
Indicates a protected name.
Brand™ Indicates a brand available on the open market.
Underlined terms Refer to technical details of the vehicle or indicate technical terms, which
are explained in the glossary.

KTM 50 SX 2020 Specifications

General

Starter	Kick starter
Final Drive	Chain
Fuel System	Carburetor
Front Brake	Disc brake
Rear Brake	Disc brake
Front Tire	60/100-12"
Engine Type	Single-cylinder, 2-stroke
Displacement	49 cc
Bore x Stroke	39.5 x 40 mm
Cooling	Liquid-cooled
Front Suspension	35 mm
Rear Suspension	Monoshock

Summary

Safety Advice

Operational Safety Warnings

Warnings related to safe operation, tampering, and burn hazards.

Important Notes

Warranty and Service Requirements

Information on warranty, service, and use of spare parts.

Preparing for Use

First Use Preparation Advice

Guidance on preparing a child rider and the motorcycle for initial use.

Engine Break-in Procedure

Recommended steps for running in the engine to ensure longevity.

Riding Instructions

Pre-Ride Checks and Maintenance

Essential checks before riding to ensure safety and performance.

Starting and Riding Techniques

Procedures for starting the vehicle and basic riding advice.

Braking and Parking Procedures

Service Schedule

Required and Recommended Work

Schedule of maintenance tasks based on operating hours.

Tuning the Chassis

Shock Absorber Adjustments

Procedures for adjusting compression and rebound damping of the shock absorber.

Fork Adjustments

Procedures for adjusting fork air pressure and rebound damping.

Service Work on the Chassis

Fork System Service

Chain Maintenance

Brake System

Brake Fluid and Linings

Wheels, Tires

Wheel Service Procedures

Cooling System

Coolant Level and Antifreeze Check

Tuning the Engine

Carburetor Idle Adjustment

Service Work on the Engine

Gear Oil Service

Carburetor

Carburetor Removal and Installation

Cleaning, Care

Storage

Troubleshooting

Engine Starting Issues

Common problems and their possible causes and solutions.

Engine Performance Issues

Common problems and their possible causes and solutions.

Technical Data

Tightening Torques