KTM 990 SUPERMOTO (2008–2010) — Specs
Identity
Manufacturer: KTM
Model: 990 SUPERMOTO
Category: Motorcycle
Type: Motorcycle
Years: 2008 → 2010
Engine
Displacement (cc): 999
Cylinders: 2
Power (hp): 115
Power (kW): 85
Torque (Nm): 100
Dimensions
Overall length: 2240 mm
Overall width: 870 mm
Overall height: 1280 mm
Wheelbase: 1510 mm
Ground clearance: 150 mm
Weight (kg): 206
Seat height (mm): 875
Tank (L): 19
Tires
Front pressure (bar): 2.2
Rear pressure (bar): 2.2
Drivetrain
Drive chain: 5/8 X 5/16" X-ring
Sprockets (front / rear): 17 / 41
Ignition
Spark plug: NGK KR8DI
Plug gap: 0.8 mm
Fluids & Filters
Engine oil: SAE10W-50, JASO T903
Engine oil (with filter, L): 3.8
Oil filter: Hiflofiltro HF655
Air filter: Hiflofiltro HFA6301
Coolant (L): 2.3
Brake fluid: DOT 4
Fuel consumption
Estimated range: ~345 km on a full tank (19.0 L)
Service
Battery: OEM battery specification
Service interval (km): 10000
Service interval (months): 12
Valve check (km): 24000
Parts and consumables for this motorcycle
Data is gathered with care, but without guarantee. Always confirm critical information with your dealer or workshop.
Service notes
Service interval: every 10,000 km or 12 months, whichever comes first. Valve clearance check every 24,000 km. Valve clearance — intake cold 0.10-0.15 mm, exhaust cold 0.25-0.30 mm. Engine oil: oil grade SAE10W-50, JASO T903, 3.8 L with filter change. Spark plug: NGK KR8DI (gap 0.8 mm). Brake fluid: DOT 4. Coolant capacity: 2.3 L. Chain: 5/8 X 5/16" X-ring, sprockets 17/41 teeth. Tire pressure: front 2.2 bar, rear 2.2 bar (cold). Always confirm critical values with the workshop manual or an authorised dealer.
OEM and quality aftermarket parts that fit this bike. Always confirm with your dealer before ordering.
Engine oil
Spec: SAE 10W-50, 3.0 L (with filter)
- OEM OEM recommended engine oil (SAE 10W-50)
- Premium Motul 7100 4T (100% Synthetic, Ester)
- Premium Motul 5100 4T Technosynthese (Semi-Synthetic)
Which Motul for this bike?
| Motul 7100 4T ✓ | Motul 5100 4T | |
|---|---|---|
| Product | Motul 7100 4T — 100% fully synthetic | Motul 5100 4T — semi-synthetic |
| Best for | Sport, Naked, Adventure (600cc+), track | Standard, Cruiser, Scooter, daily use |
| RPM protection | Excellent — ester base, stable under load | Good — for normal riding conditions |
- Standard Repsol Moto Racing 4T (Synthetic)
- Standard Elf Moto 4 Tech (Semi-Synthetic)
Fully Synthetic vs Semi-Synthetic
| Fully Synthetic | Semi-Synthetic | |
|---|---|---|
| Base oil | 100% chemical synthesis (ester or PAO) | Mineral oil + synthetic additives |
| Heat resistance | Excellent — stable at extreme heat & RPM | Good — suitable for normal temperatures |
| Cold start | Better — reaches engine faster when cold | Good — adequate for normal climates |
| Change interval | Longer (up to 10,000 km) | Shorter (5,000–7,000 km typical) |
| Price | Higher | Lower |
Oil filter
Spec: Hiflofiltro HF655
- Premium Hiflofiltro HF655
- Premium K&N KN-655
Air filter
Spec: Hiflofiltro HFA6301
- Standard Hiflofiltro HFA6301
Spark plug
Spec: NGK LMAR9AI-8, gap 0.7-0.8 mm
- OEM NGK LMAR9AI-8
- Premium NGK LMAR9AI-8
- Standard NGK LMAR9AI-8
Front brake pads
Spec: EBC FA115
- Premium EBC FA115
Rear brake pads
Spec: EBC FA115
- Premium EBC FA115
Drive chain
Spec: 5/8 X 5/16" X-ring | Sprockets 17/41 teeth / 5/8 X 5/16" X-ring
Front tire
Spec: 2.2 bar
Rear tire
Spec: 2.2 bar
Battery
- Premium Yuasa YTX14-BS or YTZ12S (typical 750-1000cc)
Brake fluid
Spec: DOT 4
- Standard TotalEnergies HBF4
Coolant
Spec: 2.30 L coolant capacity
Service interval
Spec: 10 000 km / 12 months
- OEM Engine oil + oil filter change
- OEM Air filter inspection
- OEM Spark plug check
- OEM Brake fluid replacement: every 2 years
Valve check
Spec: 24 000 km
- OEM Intake clearance: cold 0.10-0.15 mm
- OEM Exhaust clearance: cold 0.25-0.30 mm
Suspension
Spec: 48 mm USD fork / 605 ml SAE 5W
- OEM Fork: 48 mm USD fork
- OEM Fork oil grade: 605 ml SAE 5W
