2013-2015 KTM 390 Duke OEM Service & Repair Manual

2013-2015 KTM 390 Duke OEM Service & Repair Manual

This 2013-2015 KTM 390 Duke OEM Service & Repair Manual is the official factory reference used by trained KTM technicians for performing maintenance, repairs, and full mechanical overhauls on the KTM 390 Duke platform. It walks through every major system on the bike—from routine service and adjustments all the way to complete engine teardown and rebuild procedures—with measurements, tolerances, and specifications straight from KTM’s engineering documentation.

Whether you’re keeping a daily commuter running clean or rebuilding a thrashed track bike after a hard weekend, having the real service manual makes a world of difference. Instead of guesswork and forum opinions, this manual gives clear, methodical steps backed by factory data. It’s written for professional techs but it’s laid out clearly enough that a patient DIY rider can follow along with confidence.

If you’re wrenching on a 390 Duke, whether you’re sorting out a stalling issue, checking valve clearances, or pulling the engine completely, this is the manual you want sitting open next to you.

What’s Inside the KTM 390 Duke Service Manual

General Information & Symbols

How to use the manual, servicing symbols, specifications layout, and model identification points for the 390 Duke chassis and LC390 engine.

Safety Precautions

Professional workshop safety expectations, required protections, handling fluids safely, and torque-critical procedures noted for engine and chassis work.

Important Notes

Service conditions, spare parts reference notes, approved fluids and lubricants, and guidance on factory-approved components.

Vehicle Identification & Serial Numbers

Chassis number, engine stamp location, key coding, and label interpretation for correct model year verification.

Motorcycle Setup & Lifting Procedures

Rear and front stand mounting points, frame support precautions, and correct steps for raising the motorcycle for engine or suspension work.

Front Fork & Triple Clamp Service

Removal and reinstallation procedures, fork disassembly and rebuild steps, bearing play adjustment, inspection limits, and recommended consumables.

Handlebar & Controls Adjustments

Throttle and clutch cable routing, lever position setup, and ergonomic adjustment procedures.

Shock Absorber & Swingarm

Rear shock removal/installation, rebound and preload adjustments, swingarm inspection, and pivot lubrication guidelines.

Exhaust System

Header and silencer removal, inspection points, replacement steps, and sealing surfaces.

Air Filter Service

Filter service, cleaning instructions, replacement procedures, and sealing checks to prevent dirt ingestion.

Fuel Tank, Seat & Trim

Seat removal, tank removal, pump replacement, fuel pressure measurement, vent routing, and trim panel instructions.

Wheels & Tires

Tire inspection, wheel removal, chain tension specs, sprocket alignment, brake disc service, and torque values.

Battery, Wiring & Electrical System

Battery testing and charging, wiring inspections, voltage drop testing, relay and fuse troubleshooting.

Brake System (Front & Rear)

Pad replacement procedures, brake fluid changes, rotor and caliper inspection, lever feel diagnostics, and ABS component service.

Lighting & Instruments

Headlight aim adjustment, bulb replacement, LCD display settings, and switchgear checks.

Engine Service (Major Section)

Complete LC390 engine removal and installation, teardown of top-end and bottom-end components, and factory rebuild instructions with torque specs and alignment marks.

• Clutch assembly, inspection & rebuild
• Camshaft removal, timing setup, piston inspection
• Balancer shaft synchronization
• Starter, alternator, and stator servicing

Valve Clearance Checks & Adjustments

Measurement procedures, shim replacement, cam timing alignment, and tolerance charts.

Cooling System

Coolant drain/fill, bleeding methods, radiator service, water pump checks, and thermostat inspection.

Lubrication System

Oil pressure measurement, oil pump inspection, filter replacement, and screen cleaning steps.

Ignition System

Coil testing, alternator and stator checks, and troubleshooting weak spark complaints.

Shift Mechanism

Shift lever adjustment, mechanism inspection, and service instructions.

Technical Data

All torque values, clearances, service limits, and component tolerances for engine and chassis.

Cleaning & Protective Measures

Proper cleaning methods, corrosion protection, chain care, and winter storage prep.

Storage & Recommissioning

Long-term storage instructions and post-storage inspection steps.

Maintenance Schedule

Periodic maintenance chart outlining KTM’s recommended intervals and service scope for real-world uptime and reliability.

Wiring Diagrams

Multi-page schematics for ignition, charging, injection, lighting, instruments, and switches.

Special Tools & Reference Abbreviations

Factory tool catalog and reference tables used throughout the repair process.

Why This Manual Helps

Written for professional techs but easy enough for a determined DIYer to follow. If you’re planning valve checks, chasing electrical gremlins, or doing a full rebuild, this manual keeps things accurate—not guesswork.

Format & Compatibility

Searchable digital PDF format; print pages for bench use.

Download & Start Wrenching

The essential technical reference for servicing and rebuilding KTM 390 Duke engines and chassis systems.

Language: English
Compatibility: Windows, macOS, Linux, iOS, Android
Requirements: PDF Reader (e.g., Adobe Reader)