Category:
Dual-sport / Adventure Motorcycle
Target Audience:
Riders seeking a capable off-road motorcycle with street-legal capabilities, adventure tourers, and serious dual-sport enthusiasts.
Competitors:
BMW G 650 GS Sertão, Kawasaki KLR650, Honda XR650L, Yamaha WR250R (smaller displacement but similar intent).
Design Philosophy:
Lightweight, high-performance, off-road biased dual-sport motorcycle, emphasizing agility and power.
Unique Selling Points:
Potent single-cylinder engine, advanced WP suspension, high-quality components, and KTM's off-road racing pedigree.
Engine Mechanical:
Detailed diagrams and procedures for disassembly, inspection, and reassembly of engine components including cylinder head, pistons, crankshaft, connecting rods, valves, camshafts, oil pump, and cooling system.
Fuel System:
In-depth coverage of fuel injection system, fuel pump, injectors, throttle body, fuel filter replacement, and diagnostic procedures.
Ignition System:
Information on ignition coils, spark plugs, ECU (Engine Control Unit) mapping, and timing.
Transmission Drivetrain:
Covers gearbox disassembly, clutch operation and replacement, chain and sprocket maintenance, and final drive.
Suspension Steering:
Front fork disassembly, seal replacement, oil levels and type, rear shock absorber maintenance, and steering head bearing adjustments.
Brakes:
Front and rear brake system maintenance, including caliper service, pad replacement, brake fluid bleeding and replacement, master cylinder inspection, and ABS system (if applicable).
Electrical System:
Wiring diagrams, component testing (starter motor, alternator, battery), lighting systems, instrumentation, and diagnostic procedures for common electrical faults.
Chassis Frame:
Frame inspection, swingarm maintenance, subframe checks, and wheel bearing replacement.
Routine Maintenance:
Oil and filter changes, air filter cleaning/replacement, chain adjustment, spark plug replacement, valve clearance checks, brake fluid flush, coolant flush.
Troubleshooting:
Diagnostic trees and flowcharts for identifying and resolving common performance issues, starting problems, electrical faults, and fuel system anomalies.
Component Rebuild:
Detailed step-by-step instructions for complete engine rebuilds, gearbox overhauls, and suspension unit refurbishment.
Technical Specifications:
Torque specifications for all fasteners, fluid capacities, clearances, electrical resistance values, and performance data.
Depth Level:
Comprehensive; suitable for professional mechanics and advanced DIY enthusiasts. Covers everything from basic checks to full engine and chassis overhauls.
Engine Type:
Single-cylinder, 4-stroke, liquid-cooled, DOHC
Displacement:
652.7 cc (39.84 cu in)
Bore X Stroke:
102 mm x 80 mm (4.02 x 3.15 in)
Compression Ratio:
12.3:1
Horsepower:
Approx. 60 hp (45 kW) at 7,500 rpm
Torque:
Approx. 60 Nm (44 lb-ft) at 5,750 rpm
Fuel Delivery:
Electronic fuel injection (Keihin EMS)
Fuel Type:
Unleaded gasoline, minimum 95 octane (RON)
Oil Type:
Fully synthetic motorcycle oil, SAE 10W-50 or SAE 15W-50 (refer to manual for specific KTM recommendations, e.g., Motorex Power Synt 4T)
Oil Capacity:
Approx. 1.7 liters (1.8 US qt) without filter change; 1.9 liters (2.0 US qt) with filter change
Coolant Type:
Ethylene glycol-based antifreeze with corrosion inhibitors. Mix ratio 50/50 with distilled water.
Instrumentation:
Digital LCD display showing speed, RPM, gear indicator, odometer, trip meters, fuel level, clock, and warning lights.
ABS Availability:
Optional or standard depending on market and trim. The manual will detail its function and servicing.
Charging Port:
Typically equipped with a 12V power outlet for accessory charging.
Oil Filter Change:
Every 7,500 km (4,660 miles) or annually, whichever comes first.
Air Filter Cleaning:
Every 5,000 km (3,100 miles) or more frequently in dusty conditions.
Valve Clearance Check:
Every 10,000 km (6,200 miles)
Spark Plug Replacement:
Every 15,000 km (9,300 miles)
Chain Adjustment Lubrication:
Every 1,000 km (620 miles) or more often depending on riding conditions.
Coolant Type:
Ethylene Glycol based, 50/50 with distilled water
Common Complaints:
Occasional starter motor issues (especially on earlier LC4 models, though much improved by 2012), potential for fuel pump or regulator issues, occasional stator failures. Regular maintenance is key to longevity.
Maintenance Tip:
Clean and lubricate the chain regularly to prolong its life and ensure smooth power delivery. Check wheel bearings for play, especially after off-road use.
Manufacturer Origin:
Austria
Brand Specialty:
KTM is renowned for its off-road racing motorcycles (Motocross, Enduro, Dakar Rally) and has successfully translated this expertise into its street-legal models.
690 Line Introduction:
The 690 platform was introduced in the mid-2000s, evolving with various iterations like the Duke, SMC, and Enduro/Adventure models. The Enduro R variants are typically the more performance-oriented off-road versions.
Manufacturing Location:
Austria (primarily)