2008 KTM 690 Duke Service Manual | Complete Naked Bike Repair Guide

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Professional Street Motorcycle Documentation

This official factory manual provides the exact same technical specifications and repair procedures used by KTM technicians. Essential for maintaining these high-performance single-cylinder street bikes with advanced fuel injection and ABS systems.

Important Notice for Duke Owners

This manual contains critical safety information for working on high-performance motorcycles. Certain procedures should only be performed by authorized KTM technicians.

Complete Coverage Includes:

LC4 Engine Service: Detailed procedures for the 654cc single-cylinder including:

Fuel injection system diagnostics
Valve clearance adjustment (shim-under-bucket)
Counterbalancer service

ABS Brake System: Complete maintenance including:

Bleeding procedures
Sensor inspection
Pump testing

Pro Tip: The manual includes the factory-recommended run-in procedure for new engines and after rebuilds.

Chassis Setup: Proper adjustment of:

WP suspension components
Steering head bearings
Chain alignment

Model Specifications:

Engine: 654cc liquid-cooled single-cylinder 4-stroke
Power: 67 hp @ 7,500 rpm
Torque: 50 lb-ft @ 6,000 rpm
Transmission: 6-speed with chain final drive
Brakes: Dual 320mm front discs, single 240mm rear (ABS equipped)

Special Tool Requirements:

The manual includes KTM's recommended special tools:

Valve shim kit
Fuel pressure test gauge
ABS diagnostic interface
Engine balancing tool

Frequently Asked Questions

Q: Does this cover both US and European models?

A: Yes, includes all specifications for both markets, highlighting any emissions-related differences.

Q: Are the valve clearance specs different for high-mileage engines?

A: The manual provides standard specs but recommends more frequent checks for older/high-mileage bikes.

Q: Does it include the ABS reset procedure?

A: Yes, including fault code clearing methods.

Professional Motorcycle Repair Knowledge

Get the same technical information used by KTM dealerships - available for immediate download!

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