Technical Specifications – Engine - KTM 990 SUPER DUKE Owner's Manual

TECHNICAL SPECIFICATIONS – ENGINE
ENGINE
Design
Displacement
Bore / Stroke
Compression ratio
Fuel
Valve timing
Valve diameter
Valve clearance, cold
Crankcase bearing
Conrod bearing
Piston pin bearing
Piston
Piston rings
Engine lubrication
Engine oil
Quantity of engine oil
Primary drive
Clutch
Transmission
Gear ratio
990 LC8
Liquid-cooled, 2-cylinder 4-stroke engine with 75° V arrangement with balancer shaft and electric starter
999 cc
101/62.4 mm
11.5:1
unleaded fuel with at least RON 95 (USA: Premium RON 91) *
4 valves controlled over bucket tappet and 2 camshafts, camshaft drive with gears/chain
Intake: 38 mm Exhaust: 33 mm
Intake: 0.10 - 0.15 mm Exhaust: 0.25 - 0.30 mm
Friction bearings (2 main bearings / 1 supporting bearing)
Friction bearing
Dual-fuel bearing
Light alloy – forged
1 compression ring, 1 taper face ring, 1 single-piece oil scraper ring with spiral-type expander
Dry sump with 2 trochoidal pumps (pressure pump and suction pump)
SAE 10W-50 (Motorex Power Synt 4T) #
approx. 3 liters (0.8 USgal) during oil/filter change
Straight-toothed spur wheels 35 : 67
Multi-disc clutch in oil bath
6-speed claw shifted
1 st gear 14:36
2 nd gear 16:30
3 rd gear 20:30
4 th gear 21:27
5 th gear 23:26
6 th gear 25:26
»
83