2015 KTM RC 390 Supersport Workshop Service & Repair Manual – Instant PDF Download

Keep your lightweight supersport running at peak track performance with factory-engineered precision.

Get immediate access to the complete, factory-format 2015 KTM RC 390 Workshop Service & Repair Manual. Built for track-day racers, daily commuters, and motorcycle technicians, this digital technical manual provides the exact factory repair procedures, clearance tolerances, and high-definition schematics needed to service every system of KTM’s flagship lightweight sportbike.

Whether you are performing a valve clearance inspection on the high-revving DOHC engine, bleeding the cooling system, rebuilding the 43mm inverted WP front forks, or diagnosing Bosch ABS sensor codes, this manual gives you complete step-by-step guidance.

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Motorcycle Coverage:

• Model: 2015 KTM RC 390 (First Generation Platform)

• Engine: 373.2cc Liquid-Cooled, 4-Stroke, DOHC 4-Valve Single Cylinder

• Fuel System: Bosch Electronic Fuel Injection (EFI) with 46mm Throttle Body

• Chassis: Lightweight Orange Steel Trellis Frame (Aggressive 66.5° Steering Geometry)

What’s Included in This Supersport Workshop Manual?

This technical manual covers complete teardown, diagnostic inspection, tolerance measurements, and reassembly from tire to tire:

• 373.2cc DOHC Engine Overhaul: Complete cylinder head reconditioning, DLC-coated finger-follower inspection, shim-under-bucket valve clearance calculations, camshaft timing mark alignment, crankcase splitting, crankshaft journal clearances, and piston ring end-gap measurement.

• Cooling System Servicing & Bleeding: Critical step-by-step air-bleeding procedures for the cooling passages, water pump mechanical seal replacement, radiator fan thermal switch testing, and thermostat opening temperature checks.

• Bosch EFI & Fuel Delivery: 46mm throttle body inspection, fuel injector spray pattern testing, high-pressure fuel pump diagnostics, and Throttle Position Sensor (TPS) calibration.

• Transmission & Clutch Servicing: 6-speed constant-mesh gearbox teardown, shift fork wear measurements, shift drum indexing, and wet multi-plate clutch pack service limits and cable adjustment.

• WP Suspension Overhaul: Complete teardown, seal replacement, and oil-height specifications for the 43mm inverted WP front forks, along with rear WP monoshock preload adjustment workflows.

• ByBre Braking System & Bosch 9MB ABS: Radial-mount 4-piston ByBre front caliper rebuilding, 300mm front and 230mm rear disc runout checks, hydraulic fluid flush sequences, and Bosch disengageable ABS diagnostic workflows.

• Electrical Systems & Full-Color Wiring Schematics: High-definition wiring diagrams, electronic control unit (ECU) pinout tables, starter motor overhaul, stator/regulator-rectifier charging circuit testing, and digital LCD instrument cluster diagnostics.

• Fastener Torque Values & Loctite Application Tables: Factory-specified torque values (with specific Loctite threadlocker grades: 243, 2701, 648) for cylinder head bolts, engine hanger hardware, triple clamps, and wheel axles.

Digital Product Specifications

• File Format: Searchable PDF (High-resolution factory format with crisp vector line art, diagrams, and schematics)

• Delivery: Instant direct download link delivered on-screen and to your email inbox immediately after payment

• Navigation: Fully indexed with Ctrl+F text search enabled to find torque specs, clearances, and error codes in seconds

• Compatibility: Works on PC, Mac, iPad, iPhone, Android tablets, and workshop laptops

• Printable: Yes — print clean rebuild sheets for your engine stand or trackside prep checklists for your paddock

Why RC 390 Owners Rely on This Manual

1. Critical Cooling & Valvetrain Tolerances: The high-output 373cc single runs tight clearances. Following proper torque sequences and exact cooling system bleeding steps is vital to prevent blown head gaskets and premature valvetrain wear.

2. Instant 24/7 Paddock Access: Prepping your bike in the race paddock or garage late at night? Download the manual directly to your smartphone or tablet in under 60 seconds without waiting for a physical book to ship.

3. High-Definition Zoom: Enlarge complex valvetrain shimming diagrams, fairing bracket disassembly sequences, and wiring schematics without pixelation or lost detail.

Frequently Asked Questions (FAQ)

Q: Does this manual show how to check and adjust the valve clearances?
A: Yes, it contains illustrated, step-by-step instructions for measuring valve lash with feeler gauges and calculating correct shim thicknesses for the DLC-coated finger-follower valvetrain.

Q: Are the electrical and ABS wiring schematics included?
A: Yes, it features full-color electrical schematics covering the entire motorcycle, including the Bosch 9MB ABS module and ECU pinouts.

Q: How do I access my purchase?
A: As soon as checkout completes, an instant download button will appear on your confirmation screen. An automated email containing a permanent download link will also be sent immediately to your inbox.

Keep Your RC 390 at Peak Track Performance

Equip your workshop with the original factory technical service manual and maintain your KTM supersport with absolute confidence.