KTM 390 Duke Motorcycle Service Manual | 2017-2021

Complete OEM factory service and repair manual for the 2017-2021 KTM 390 Duke motorcycle, covering all variants including EU, US, AU, JP, AR, MY, PH, TH, and CO models. Use it to service, repair, and overhaul the engine, suspension, brakes, cooling system, clutch, transmission, electrical systems, and more. Delivered instantly as a fully searchable PDF compatible with any device. • Easily print any or all content

• Adobe Acrobat (PDF) format
• Fully searchable
• Easily print any or all content
• Everything needed to repair & maintain your motorcycle
• Troubleshooting instructions, wiring diagrams, and reference material

• 390 Duke EU (F4303Q1
• F4303Q2
• F4303Q3
• F4303Q4)
• 390 Duke AU (F4360Q1
• F4360Q2)
• 390 Duke JP (F4386Q1
• F4386Q2)
• 390 Duke AR (F4342Q1
• F4342Q2)
• 390 Duke MY (F4389Q1
• F4389Q2)

• GENERAL INFORMATION
• PERIODIC MAINTENANCE
• FUEL SYSTEM
• ENGINE TOP END
• ENGINE BOTTOM END
• CLUTCH & TRANSMISSION
• COOLING SYSTEM
• LUBRICATION SYSTEM
• ELECTRICAL SYSTEM
• SUSPENSION
• BRAKES
• CHASSIS & FRAME
• WIRING DIAGRAMS

• Complete engine disassembly and assembly procedures including crankshaft, balancer shaft, cylinder head, and camshafts
• EFI fuel system and throttle valve body diagnostics and initialization
• Electrical, ignition, and charging system procedures including stator and alternator checks
• Cooling system inspection, coolant change, and water pump service
• Primary and secondary drive service including clutch basket and shift mechanism
• Transmission and gearbox overhaul including main shaft and countershaft procedures
• Front fork disassembly, inspection, assembly, and triple clamp service
• Rear shock absorber, swingarm, and swingarm bearing service
• Brake system inspection, brake lining changes, and hydraulic fluid service
• Frame, footrests, bodywork, fuel tank, seat, and trim removal and installation
• Wheels, tires, chain, sprockets, and drivetrain service
• Combination instrument functions, menu settings, and service interval reset
• Troubleshooting charts and diagnostic workflows
• OEM specifications, tolerance wear limits, and torque tables
• High-resolution wiring diagrams for EU, AU, JP, AR, MY, PH, TH, US, and CO variants

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