🏷️ Basic Information

Make:

KTM

Model:

690 Duke

Year:

2008

Oem Manual Part Number:

3.210.256

👋 Introduction

Category:

Lightweight Naked Sportbike

Target Audience:

Enthusiast riders seeking performance, agility, and a minimalist aesthetic

Competitors 2008:

Yamaha MT-03, Suzuki SV650 (closest in spirit), Ducati Monster 696 (premium competitor)

Engine Type:

Single-cylinder, liquid-cooled, four-stroke

Chassis Design:

Trellis frame, WP suspension components

Braking System:

Brembo radial master cylinder and caliper

📋 Manual Details

Primary Coverage:

Owner's Information, Operation, Maintenance, Basic Troubleshooting

Secondary Coverage:

Safety Precautions, Specifications, General Care

Estimated Page Count:

120

Type:

Owner's Manual

Language:

English

Format:

Printed Booklet

📖 Manual Coverage

Engine Operation:

Basic engine functions, starting/stopping procedures, idle control

Fuel System:

Fuel tank, fuel cap, fuel pump operation, fuel recommendations

Electrical System:

Ignition system, lighting, indicators, horn, battery care, fuse identification

Chassis Controls:

Handlebars, levers, pedals, suspension adjustment (basic)

Brakes:

Brake lever/pedal operation, brake fluid level checks, parking brake

Wheels And Tires:

Tire pressure recommendations, tire inspection

Instruments And Controls:

Dashboard layout, indicator lights, warning lamps, switchgear functionality

Operation:

Riding instructions, pre-ride checks, proper throttle and clutch usage

Maintenance:

Regular checks, cleaning, lubrication, basic fluid level top-offs

Troubleshooting:

Basic diagnostic guidance for common issues, warning light interpretation

Safety:

Riding safety tips, protective gear, road hazard awareness

Depth Level:

Owner-level understanding and basic care, not a repair manual

📊 Manual Specifications

File Format:

N/A (Printed Booklet)

Print Quality:

Standard OEM quality, clear text and diagrams

Binding Type:

Stapled or perfect bound booklet

Paper Type:

Standard paper stock, typically coated for durability

⚙️ Engine Specifications

Engine Code:

LC4 654E (often referred to)

Displacement:

654 cc

Bore X Stroke:

101 mm x 80.2 mm

Compression Ratio:

12.6:1

Valve Train:

SOHC, 4 valves per cylinder

Claimed Horsepower:

62 hp (approx. 46 kW) at 7,250 rpm

Claimed Torque:

67 Nm (approx. 49.4 lb-ft) at 5,750 rpm

Fuel Delivery:

Electronic Fuel Injection (EFI) with Keihin throttle body

Fuel Type:

Unleaded gasoline, minimum 95 RON (octane rating)

🔧 Transmission

Type:

6-speed, sequential

Clutch:

Wet multi-disc clutch, hydraulically operated

Final Drive:

Chain drive

📐 Dimensions

Length:

Approx. 2150 mm (84.6 in)

Width:

Approx. 870 mm (34.3 in) (incl. mirrors)

Height:

Approx. 1150 mm (45.3 in) (incl. windshield)

Wheelbase:

Approx. 1450 mm (57.1 in)

Seat Height:

Approx. 865 mm (34.1 in)

Dry Weight:

Approx. 163 kg (359.4 lbs)

Wet Weight:

Approx. 180 kg (396.8 lbs) (estimated with fluids)

Fuel Tank Capacity:

12 Liters (3.17 US Gallons)

🛡️ Safety Features

Safety Certification:

EC/EPA Compliant (standard for road motorcycles)

Brakes:

Front: 320mm disc with Brembo 4-piston radial caliper. Rear: 240mm disc with 1-piston caliper. ABS optional on some markets/versions.

Suspension:

WP components, adjustable preload and rebound damping (front/rear)

Lighting:

Halogen headlight, LED taillight, standard indicators

Frame Type:

Chromium-molybdenum steel trellis frame

💡 Technology Features

Dashboard:

Digital LCD display showing speed, RPM, odometer, trip meters, clock, and warning indicators.

ABS:

Optional on some variants and markets for 2008. Manual will detail its operation if equipped.

Connectivity Features:

N/A (No modern connectivity features like Bluetooth or smartphone integration)

🔧 Maintenance

Oil Change Interval:

Typically every 5,000 - 7,500 km (3,000 - 5,000 miles) or annually, whichever comes first (refer to manual for exact details).

Valve Clearance Check:

Usually around 10,000 - 15,000 km (6,000 - 9,000 miles)

Spark Plug Replacement:

Recommended at major service intervals, typically 10,000 - 15,000 km

Engine Oil Type:

Full synthetic motorcycle oil, SAE 10W-50, API SG/SH/SJ or higher, JASO MA/MA2 certified (e.g., Motorex Power Synt 4T 10W-50)

Coolant Type:

Water/glycol mixture (50/50) with corrosion inhibitors (e.g., Motorex Coolant M3.0)

Brake Fluid Type:

DOT 4 hydraulic brake fluid

Clutch Fluid Type:

DOT 4 hydraulic clutch fluid (shared with brake system)

Fork Oil Type:

Specific suspension fluid, e.g., WP Suspension Fluid SAE 5W or equivalent.

Common Points Of Attention:

While generally robust, early models might have had minor EFI calibration quirks or potential for occasional electrical connector issues. Routine maintenance is key to longevity.

📚 Vehicle History

Brand Origins:

Austrian manufacturer with strong roots in off-road and racing motorcycles

Duke Lineage:

The 690 Duke represents a significant evolution in KTM's naked streetbike offerings, building on the legacy of the LC4 engine platform. Introduced in its current form around 2008, it aimed to offer a more refined and versatile package than its predecessors.

Production Years Covered:

This manual specifically covers the 2008 model year, which was part of the initial generation of the single-cylinder 690 Duke.

🏆 Awards & Recognition

Industry Reputation:

The 690 Duke series is known for its sharp handling, punchy single-cylinder engine, and distinctive KTM styling. It has consistently been well-regarded in its segment for performance and character.