Segment:
Lightweight naked sport motorcycles, entry-level performance segment.
Target Audience:
New riders, urban commuters, and those seeking agile, fun, and economical performance.
Key Competitors:
Yamaha MT-03, Kawasaki Z250/Z300 (depending on market), Suzuki GSX250R.
Brand Philosophy:
KTM's 'Ready to Race' philosophy translates to a sporty chassis and potent engine for its class.
Design:
Aggressive styling, trellis frame, and premium componentry (e.g., ByBre brakes, WP suspension) for its segment.
Engine:
Complete engine disassembly, assembly, troubleshooting, and overhaul procedures for single-cylinder, liquid-cooled engines.
Fuel System:
Detailed diagnostics and repair for the fuel injection system (Bosch EFI), throttle body, fuel pump, and fuel filter.
Transmission:
Coverage of the 6-speed constant mesh gearbox, clutch operation, maintenance, and common issues.
Electrical System:
Comprehensive wiring diagrams, troubleshooting guides for ignition, lighting, starter system, battery, and ECU.
Chassis:
Suspension (WP USD front forks, WP monoshock rear), steering, frame, and swingarm inspection and service.
Brakes:
Front and rear brake system service, including hydraulic lines, calipers (ByBre), discs, and bleeding procedures.
Cooling System:
Radiator, fan, thermostat, and coolant flow diagnostics and maintenance.
Exhaust System:
Service and inspection of the exhaust headers and silencer assembly.
Bodywork:
Panel removal, installation, and basic bodywork repair guidance.
Routine Maintenance:
Oil changes, filter replacements, chain adjustment, tire pressure checks, spark plug replacement, and brake fluid checks.
Troubleshooting:
Diagnostic charts and procedures for common starting issues, engine performance problems, electrical faults, and braking anomalies.
Engine Rebuild:
Complete step-by-step instructions for engine disassembly, component inspection (piston, rings, cylinder, valves), reassembly, and torque specifications.
Suspension Service:
Fork seal replacement, oil changes, and shock absorber servicing.
Brake System Repair:
Bleeding brakes, caliper service, and pad replacement.
Electrical Diagnostics:
Wiring harness inspection, sensor testing, and fault code interpretation.
Depth Level:
Comprehensive; covers everything from basic owner maintenance to complete engine and chassis overhauls.
Diagnostics:
Advanced diagnostic procedures for fuel injection and ignition systems.
Component Specs:
Detailed specifications for all major components, including tolerances and wear limits.
Engine Type:
Single-cylinder, 4-stroke, liquid-cooled, DOHC, 4 valves
Displacement 125:
124.7 cm³ (7.6 cu in)
Displacement 200:
199.5 cm³ (12.2 cu in)
Bore X Stroke 125:
54 mm x 54.5 mm (2.13 x 2.15 in)
Bore X Stroke 200:
72 mm x 49 mm (2.83 x 1.93 in)
Power Output 125 Approx:
15 hp (11 kW) @ 9,500 rpm (varies by market regulations)
Power Output 200 Approx:
25 hp (18.4 kW) @ 10,000 rpm
Torque 125 Approx:
12 Nm (8.9 lb-ft) @ 8,000 rpm
Torque 200 Approx:
19.5 Nm (14.4 lb-ft) @ 8,000 rpm
Fuel Delivery:
Bosch electronic fuel injection (EFI)
Fuel Type:
Unleaded gasoline, minimum 91 RON
Emission Control:
Catalytic converter
Oil Type:
API SG/SH/SJ or JASO MA/MA2; SAE 10W/50
Instrument Cluster:
Digital LCD display with tachometer, speedometer, gear indicator, fuel level, and warning lights.
ABS System:
Bosch ABS unit, offering safety during braking.
Connectivity Features:
No advanced connectivity features such as Bluetooth or smartphone integration on these specific model years.
Oil Change Interval:
Every 5,000 km (3,100 miles) or annually, whichever comes first.
Air Filter Check:
Every 5,000 km (3,100 miles)
Spark Plug Replacement:
Every 10,000 km (6,200 miles)
Chain Cleaning Lubrication:
Every 1,000 km (620 miles) and after riding in wet conditions.
Valve Clearance Check:
Every 10,000 km (6,200 miles)
Engine Oil:
API SG/SH/SJ or JASO MA/MA2; SAE 10W/50
Coolant:
Mixture of distilled water and antifreeze (e.g., Motorex M3.0 or equivalent), typically a 50/50 mix.
Common Faults:
Some owners have reported occasional electrical gremlins, minor leaks from engine seals under high mileage, and chain wear if not maintained diligently.
Diagnostic Assistance:
The manual provides detailed troubleshooting steps to identify and resolve potential issues.
Brand Origin:
KTM is an Austrian manufacturer known for its off-road prowess and aggressive performance motorcycles.
Duke Lineup:
The Duke line represents KTM's street-focused naked motorcycles, characterized by their sharp styling and dynamic handling.
125 200 Introduction:
The 125 and 200 Duke models were introduced to cater to emerging markets and entry-level riders seeking KTM's DNA in a more accessible package.
Manufacturing Location:
Primarily manufactured in India through a partnership with Bajaj Auto.
