## KTM SPORTMOTORCYCLES 60 SX/65 SX Engine 1998 1999 2000 2001 2002 2003

### Overview

The KTM SPORTMOTORCYCLES 60 SX/65 SX Engine 1998-2003 is a high-performance, two-stroke engine designed for use in motocross racing. It is a liquid-cooled, single-cylinder engine with a displacement of 65cc. The engine is equipped with a reed valve intake system and a power valve exhaust system. It is capable of producing up to 19 horsepower at 11,000 rpm.

### Engine Design

The engine is constructed of a lightweight aluminum alloy cylinder and crankcase. The cylinder is Nikasil-plated for durability and wear resistance. The crankshaft is forged steel and is supported by two main bearings. The connecting rod is forged aluminum and is equipped with a roller bearing on the big end. The piston is made of a high-silicon aluminum alloy and is fitted with two piston rings.

### Intake and Exhaust Systems

The engine is equipped with a reed valve intake system. The reed valve is a thin, flexible plate that is mounted in the intake manifold. When the piston moves down on the intake stroke, the reed valve opens, allowing air and fuel to enter the cylinder. When the piston moves up on the compression stroke, the reed valve closes, sealing the intake port.

The engine is also equipped with a power valve exhaust system. The power valve is a variable-area exhaust port that is controlled by a servo motor. The servo motor is controlled by the engine's electronic control unit (ECU). The power valve opens and closes to optimize the engine's power output at different engine speeds.

### Ignition and Fuel Injection Systems

The engine is equipped with a digital ignition system. The ignition system is controlled by the engine's ECU. The ECU uses a series of sensors to determine the engine's speed, throttle position, and air temperature. The ECU then uses this information to calculate the ignition timing.

The engine is also equipped with a fuel injection system. The fuel injection system is controlled by the engine's ECU. The ECU uses a series of sensors to determine the engine's speed, throttle position, and air temperature. The ECU then uses this information to calculate the amount of fuel to inject into the cylinder.

### Transmission

The engine is equipped with a six-speed transmission. The transmission is a constant-mesh, sequential-shift transmission. The gears are made of forged steel and are hardened for durability. The transmission is shifted by a foot-operated shift lever.

### Chassis

The engine is mounted in a lightweight aluminum frame. The frame is a twin-spar design with a single shock absorber in the rear. The front suspension is a telescopic fork with adjustable rebound and compression damping. The rear suspension is a single shock absorber with adjustable rebound, compression, and preload damping.

### Brakes

The engine is equipped with hydraulic disc brakes. The front brake is a single disc brake with a two-piston caliper. The rear brake is a single disc brake with a single-piston caliper.

### Wheels and Tires

The engine is equipped with 19-inch front and 16-inch rear wheels. The wheels are made of aluminum alloy and are fitted with tubeless tires.

KTM SPORTMOTORCYCLES 60 SX/65 SX ENGINE 1998 1999 2000 2001 2002 2003* Factory Service / Repair/ Workshop Manual Instant Download! (98 99 00 01 02 03)

This manual contains maintenance and repair procedure for the 1998-2003 KTM SPORTMOTORCYCLES 60 SX/65 SX ENGINE. With this manual, you may maintain, service, diagnose and repair your own. With step by step instruction & highly detailed exploded pictures & diagrams to show you how to complete the required job correctly & efficiently. All repair procedures are covered. It's the same type of Manual that your local Dealer/Mechanic would use.

Model Covers:

1998-2003 KTM SPORTMOTORCYCLES 60 SX/65 SX ENGINE

This Manual Covers:

Service-Informations
General Information
Removing And Refitting Engine
Disassembling The Engine
Servicing Individual Components
Assembling The Engine
Trouble Shooting
Technical Specifications
Periodic Maintenance Schedule

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File Format: PDF
Compatible: All Versions of Windows & Mac
Language: English
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