KTM 85 SX 2019 User Manual

OWNER'S MANUAL 2019
85 SX
Art. no. 3213846en

KTM 85 SX 2019 Specifications

General

Engine Type	1-cylinder, 2-stroke engine
Displacement	84.9 cm³
Starter	Kickstarter
Transmission	6-speed
Cooling	Liquid cooled
Front Brake	Disc brake
Rear Brake	Disc brake
Front Brake Diameter	240 mm
Bore x Stroke	47 mm x 48.95 mm
Frame Design	Central tube frame, chrome molybdenum steel
Front Suspension	WP XACT 43
Rear Suspension	WP XACT Monoshock with linkage
Front Tire	70/100-19"
Rear Tire	90/100-16
Wheelbase	1, 290 mm ± 10 mm
Fuel Tank Capacity	5.2 liters

Summary

Safety Advice

Use Definition and Intended Use

Defines the vehicle's intended competitive use and compliance with motorsport regulations.

Misuse Warnings

Highlights dangers from improper use or non-specified operating fluids.

General Safety Instructions

Emphasizes reading all safety instructions and keeping warning labels intact.

Degrees of Risk and Symbols

Explains risk levels (Danger, Warning, Caution, Note) and their corresponding symbols.

Tampering Warning

Prohibits tampering with noise control systems and lists specific restricted acts.

Safe Operation Practices

Covers dangers of accidents, poisoning, burns, and general safe operation guidelines.

Protective Clothing Requirements

Stresses the increased safety risk from missing or inadequate protective clothing.

Owner's Manual Importance

Serial Numbers

Chassis Number Location

Engine Number Location

Controls

Kill Switch Functionality

Fuel Filler Cap Operation

Provides safety warnings for refueling and instructions on opening/closing the filler cap.

Preparing for Use

Advice on First Use

Provides critical safety advice for new riders and parents before the first ride.

Running In the Engine

Details the engine break-in procedure, including performance limits and throttle usage.

Preparation for Difficult Riding Conditions

Lists challenging conditions and general preparation steps like air filter maintenance.

Preparation for Dry Sand Riding

Provides specific preparation steps for riding on dry sand, including radiator cap checks.

Preparation for Wet Sand Riding

Offers preparation advice for riding on wet sand, similar to dry sand conditions.

Preparation for Wet and Muddy Circuits

Outlines necessary preparations for riding in wet and muddy circuit conditions.

Preparation for High Temperatures or Slow Riding

Advises on preparations for operating the motorcycle in hot weather or slow riding.

Preparation for Low Temperatures or Snow

Covers preparations required for riding in cold weather or snowy conditions.

Riding Instructions

Pre-Ride Checks and Maintenance

Lists essential checks and maintenance measures to ensure safe operation before riding.

Starting the Vehicle Safely

Covers safety precautions and the procedure for starting the motorcycle's engine.

Starting Off Procedure

Explains the correct procedure for engaging the clutch and starting to ride.

Shifting Gears and Riding Techniques

Details gear shifting, riding techniques, and throttle control for efficiency.

Proper Brake Application

Guides on effective brake application considering various conditions and safety.

Stopping and Parking Safely

Provides instructions and warnings for safely stopping and parking the vehicle.

Refueling Safety and Procedure

Covers essential safety precautions and the step-by-step process for refueling.

Service Schedule

Required Maintenance Work

Lists mandatory maintenance tasks and their specified intervals (per race, hours).

Recommended Maintenance Work

Outlines recommended service tasks and their specified intervals (annually, hours).

Tuning the Chassis

Basic Chassis Setting with Rider Weight

Explains how to adjust suspension based on rider weight for optimal handling.

Air Suspension AER 43 System

Details the AER 43 air suspension system components and function.

Shock Absorber Compression Damping

Adjusting Low-Speed Compression Damping

Guides on adjusting the shock absorber's low-speed compression damping.

Adjusting High-Speed Compression Damping

Provides instructions for adjusting the shock absorber's high-speed compression damping.

Adjusting Rebound Damping of Shock Absorber

Details the process for adjusting the shock absorber's rebound damping.

Measuring Rear Wheel Sag Unloaded

Checking Static Sag of Shock Absorber

Checking Riding Sag of Shock Absorber

Adjusting Shock Absorber Spring Preload

Covers how to adjust the shock absorber's spring preload for desired sag.

Adjusting Riding Sag

Explains how to adjust the riding sag by modifying the spring preload.

Checking Basic Fork Setting

Adjusting Fork Air Pressure

Guides on adjusting the air pressure in the front fork for suspension tuning.

Adjusting Fork Compression Damping

Details how to adjust the compression damping on the front fork.

Adjusting Fork Rebound Damping

Provides instructions for adjusting the rebound damping on the front fork.

Service Work on the Chassis

Raising Motorcycle with Lift Stand

Checking Steering Head Bearing Play

Adjusting Steering Head Bearing Play

Removing Air Filter

Cleaning Air Filter and Air Filter Box

Provides instructions for cleaning the air filter and box, including safety notes.

Removing Fuel Tank

Guides on removing the fuel tank, including safety warnings for fuel.

Installing Fuel Tank

Details the procedure for installing the fuel tank, including safety warnings.

Cleaning the Chain

Checking Chain Tension

Guides on how to check the drive chain tension and its importance for longevity.

Adjusting Chain Tension

Details the process for adjusting the drive chain tension correctly.

Checking Drivetrain Components

Checking Throttle Cable Routing

Checking Hydraulic Clutch Fluid Level

Correcting Hydraulic Clutch Fluid Level

Guides on how to correct the hydraulic clutch fluid level, including safety precautions.

Changing Hydraulic Clutch Fluid

Details the procedure for changing the hydraulic clutch fluid with safety warnings.

Brake System

Checking Hand Brake Lever Free Travel

Adjusting Hand Brake Lever Free Travel

Checking Brake Discs

Details how to check the front and rear brake discs for wear and damage.

Checking Front Brake Fluid Level

Guides on checking the front brake fluid level and potential issues.

Adding Front Brake Fluid

Explains how to add front brake fluid, with safety precautions.

Checking Front Brake Linings

Changing Front Brake Linings

Checking Foot Brake Lever Free Travel

Adjusting Foot Brake Lever Basic Position

Checking Rear Brake Fluid Level

Guides on checking the rear brake fluid level and potential issues.

Adding Rear Brake Fluid

Explains how to add rear brake fluid, with safety precautions.

Checking Rear Brake Linings

Changing Rear Brake Linings

Wheels and Tires

Removing the Front Wheel

Installing the Front Wheel

Removing the Rear Wheel

Installing the Rear Wheel

Checking Tire Condition

Checking Tire Air Pressure

Checking Spoke Tension

Cooling System

Checking Antifreeze and Coolant Level

Explains how to check antifreeze and coolant levels with safety warnings.

Checking Coolant Level

Guides on checking the coolant level in the radiator with safety warnings.

Draining the Coolant

Refilling with Coolant

Tuning the Engine

Checking Throttle Cable Play

Adjusting Throttle Cable Play

Carburetor Setting Fundamentals

Explains the effects of carburetor components on engine performance.

Carburetor Idle Adjustment

Adjusting Idle Speed

Guides on adjusting the engine's idle speed and air mixture.

Emptying Carburetor Float Chamber

Service Work on the Engine

Checking Gear Oil Level

Changing Gear Oil

Details the procedure for changing the gear oil, including safety warnings.

Adding Gear Oil

Cleaning and Care

Cleaning the Motorcycle

Storage

Motorcycle Storage Procedures

Preparing for Use After Storage

Technical Data

Engine Specifications

Engine Tightening Torques

Provides a table of critical engine component tightening torques.

Carburetor Specifications

Basic Carburetor Setting for Sandy Surfaces

Carburetor Tuning Guide

Chassis Specifications

Fork Specifications

Shock Absorber Specifications

Chassis Tightening Torques

Lists crucial chassis component tightening torques with specifications.

Substances

Brake Fluid DOT 4 / DOT 5.1

Coolant and Antifreeze Guidelines

Engine Oil (15W/50) Specifications

Engine Oil, 2-Stroke Specifications

Fuel Mixture Specifications