KTM 390 Adventure / SW — OEM Fluid, Tire Pressure & Maintenance Specs
373.2cc Liquid-Cooled Single-Cylinder DOHC 4-Valve Lightweight Adventure (Cornering ABS · Offroad TC) · Source: KTM 390 Adventure / SW Official Owner’s Manual Maintenance Specifications
According to the KTM 390 Adventure / SW Official Owner’s Manual Maintenance Specifications, the 2020–Present KTM 390 Adventure / SW (chassis VBKJPJ40/JPJ) requires 1.55 L (1.64 US qt) of SAE 15W-50 (JASO MA2, API SN Fully Synthetic (Motorex Formula 4T 15W-50)) engine oil for a drain-only change and 1.7 L (1.80 US qt) with filter service (90138015000 / HF155). Standard solo cold tire pressure is 200 kPa / 2.00 bar / 29 PSI front (100/90-19 M/C 57V) and 200 kPa / 2.00 bar / 29 PSI rear (130/80-17 M/C 65V), paired with 1× Bosch VR6NEU spark plug(s) and a ETZ9-BS / YTX9-BS battery.
Drain only: 1.55 L (1.64 US qt)
R 200 kPa (2.00 bar)
Est. Range: ~406 km (252 mi)
1. Engine Lubrication, Filter & Clutch Specifications
| Clutch Architecture | Wet Multi-Plate Manual Clutch NEVER use JASO MB |
|---|---|
| Recommended Viscosity & Grade | SAE 15W-50 · JASO MA2 · API SN Fully Synthetic (Motorex Formula 4T 15W-50) |
| Oil Volume (Drain / With Filter / Overhaul) |
• Drain only: 1.55 L (1.64 US qt) • With filter/strainer: 1.7 L (1.80 US qt) • Complete dry overhaul: 1.85 L (1.95 US qt) |
| OEM Oil Filter Code & Type | 90138015000 / HF155 |
| Correct Oil Level Check Method | Hold bike upright on level ground 3–5 min after warm shutdown; read crankcase sight glass |
| Oil Drain Bolt Torque | 15 N·m (11.1 lb-ft / 1.53 kgf·m) — Use fresh crush washer |
2. Cold Tire Pressures, Wheels, Ignition & Drivetrain
| Front / Rear OEM Tire Sizes | Front: 100/90-19 M/C 57V · Rear: 130/80-17 M/C 65V (Tubeless) |
|---|---|
| Cold Tire Pressure — Solo Riding |
Front: 200 kPa / 2.00 bar / 29 PSI Rear: 200 kPa / 2.00 bar / 29 PSI |
| Cold Tire Pressure — 2-Up / Loaded Touring |
Front: 220 kPa / 2.20 bar / 32 PSI Rear: 240 kPa / 2.40 bar / 35 PSI |
| OEM Spark Plug & Quantity | Bosch VR6NEU × 1 (Gap: 1.0 mm) |
| OEM Battery Code & Rating | ETZ9-BS / YTX9-BS (12V 8.0Ah Sealed MF AGM) |
| Final Drive Maintenance | 520 X-Ring Sealed Chain (15T/45T, 118 links) — Clean grit after off-road stages |
| Brake Fluid & Coolant | DOT 4 or DOT 5.1 · Motorex Coolant M3.0 Dual-Fan Radiator Coolant (~1.2 L) |
3. Ergonomics, Range & Scheduled Service Intervals
| Displacement · Max Power · Peak Torque | 373 cc · 43.5 hp @ 9,000 rpm · 37 N·m (27.3 lb-ft) @ 7,000 rpm |
|---|---|
| Seat Height & Wet Curb Weight | 855 mm (33.7 in) · 172 kg (379 lbs) |
| Fuel Tank & Est. Real-World Range | 14.5 L (3.8 US gal) · ~28 km/L → ~406 km (252 mi) |
| OEM Scheduled Maintenance Intervals |
• First Break-In: 1,000 km • Engine Oil / Filter: 7,500 km / 7,500 km • Air Filter / Spark Plug: 15,000 km / 15,000 km • Valve Clearance Check: 15,000 km |
4. Generation Cutoffs & Real-World Wrenching Gotchas
Model-Year & Chassis Generation Notes
Launched in 2020 with 19/17 cast tubeless wheels, KTM added the spoked-wheel 390 Adventure SW in 2023 (check your rim stem—cast models are tubeless while standard center-spoked SW rims carry inner tubes; succeeded in 2025+ by the 399cc LC4c generation).
Oil & Clutch Mechanical Engineering Note
While sharing the 373cc DOHC single with the 390 Duke/RC, the 390 Adventure adds a curved radiator with dual electric fans for low-speed trail riding. Slipping the wet clutch up steep gravel hills demands full-synthetic SAE 15W-50 JASO MA2 oil (1.7 L).
Garage Wrenching Gotchas
- Drop the bash plate before draining oil so you can pull both crankcase mesh screens cleanly, and inspect the under-seat air filter far earlier than 15,000 km if riding dusty gravel roads.
- At 855 mm seat height, shorter riders should plan left-foot stops on cambered trails; also remember the rubber footpeg inserts unbolt in minutes to expose grippy serrated dirt teeth.
5. Frequently Asked Questions (FAQ)
Does the 390 Adventure use the same oil filter and spark plug as the 390 Duke?
Yes—across the 373cc generation, the paper oil filter (90138015000 / HF155), Bosch VR6NEU spark plug, and 1.70 L 15W-50 oil spec interchange 100% with the 390 Duke and RC 390.
What tire pressure should I run on the KTM 390 Adventure solo vs loaded?
Run 200 kPa (29 PSI) front and rear cold for solo road trips, bumping up to 220 kPa (32 PSI) front and 240 kPa (35 PSI) rear when carrying panniers or a passenger.
What is the real-world touring range of the KTM 390 Adventure?
Its low-slung 14.5 L (3.83 US gal) fuel tank keeps weight low while delivering roughly 380–410 km of highway-and-backroad range per tank.