KTM 990 Super Duke (LC8 V-Twin) — OEM Fluid, Tire Pressure & Maintenance Specs
999cc Liquid-Cooled 75-deg V-Twin DOHC 8-Valve Dry-Sump LC8 · Source: KTM 990 Super Duke (LC8 V-Twin) (2005–2013) Official Owner’s Manual Maintenance Specifications
According to the KTM 990 Super Duke (LC8 V-Twin) (2005–2013) Official Owner’s Manual Maintenance Specifications, the 2005–2013 KTM 990 Super Duke (LC8 V-Twin) (chassis VBKVD940/LC8-999SD) requires 2.8 L (2.96 US qt) of SAE 10W-50 (JASO MA2, Motorex Power Synt 4T 10W-50 Full Synthetic) engine oil for a drain-only change and 3 L (3.17 US qt) with filter service (60038015000 / HF650). Standard solo cold tire pressure is 240 kPa / 2.40 bar / 35 PSI front (120/70 ZR17) and 260 kPa / 2.60 bar / 38 PSI rear (180/55 ZR17), paired with 2× NGK DCPR8E spark plug(s) and a YTZ10S / YTZ14S battery.
Drain only: 2.8 L (2.96 US qt)
R 260 kPa (2.60 bar)
Est. Range: ~278 km (173 mi)
1. Engine Lubrication, Filter & Clutch Specifications
| Clutch Architecture | Wet Multi-Plate Manual Clutch NEVER use JASO MB |
|---|---|
| Recommended Viscosity & Grade | SAE 10W-50 · JASO MA2 · Motorex Power Synt 4T 10W-50 Full Synthetic |
| Oil Volume (Drain / With Filter / Overhaul) |
• Drain only: 2.8 L (2.96 US qt) • With filter/strainer: 3 L (3.17 US qt) • Complete dry overhaul: 3.4 L (3.59 US qt) |
| OEM Oil Filter Code & Type | 60038015000 / HF650 |
| Correct Oil Level Check Method | Dry-sump oil tank — warm engine to operating temperature and check oil tank/frame dipstick immediately after shutdown per OEM procedure (never top up cold) |
| Oil Drain Bolt Torque | 20 N·m (14.8 lb-ft / 2.04 kgf·m) — Use fresh crush washer |
2. Cold Tire Pressures, Wheels, Ignition & Drivetrain
| Front / Rear OEM Tire Sizes | Front: 120/70 ZR17 · Rear: 180/55 ZR17 (Tubeless) |
|---|---|
| Cold Tire Pressure — Solo Riding |
Front: 240 kPa / 2.40 bar / 35 PSI Rear: 260 kPa / 2.60 bar / 38 PSI |
| Cold Tire Pressure — 2-Up / Loaded Touring |
Front: 250 kPa / 2.50 bar / 36 PSI Rear: 290 kPa / 2.90 bar / 42 PSI |
| OEM Spark Plug & Quantity | NGK DCPR8E × 2 (Gap: 1.0 mm) |
| OEM Battery Code & Rating | YTZ10S / YTZ14S (12V 8.6–11.2Ah MF AGM) |
| Final Drive Maintenance | 525 Heavy-Duty X-Ring Chain — Maintain 25–35 mm slack and lubricate regularly |
| Brake Fluid & Coolant | DOT 4 or DOT 5.1 · OAT ethylene-glycol coolant for aluminum radiators (50:50 premix) |
3. Ergonomics, Range & Scheduled Service Intervals
| Displacement · Max Power · Peak Torque | 999 cc · 120 hp @ 9,000 rpm · 100 N·m (73.8 lb-ft) @ 7,000 rpm |
|---|---|
| Seat Height & Wet Curb Weight | 850 mm (33.5 in) · 198 kg (437 lbs) |
| Fuel Tank & Est. Real-World Range | 18.5 L (4.9 US gal) · ~15 km/L → ~278 km (173 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
Original hooligan 999cc 75-degree V-twin Super Duke (not to be confused with the 2024 parallel-twin 990 Duke), running an external front dry-sump oil tank (3.0 L).
Oil & Clutch Mechanical Engineering Note
KTM/Husqvarna LC8c parallel-twin (790/890/990, Norden 901) and LC8 V-twin (1190/1290/1390) semi-dry-sump family requiring SAE 10W-50 JASO MA2 and mesh screen service.