Engine 990 Super Duke - KTM 2003 950 Adventure Repair Manual

11-5
TECHNICAL SPECIFICATIONS – ENGINE 990 SUPER DUKE
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
Mixture preparation
Ignition system
Ignition timing
Generator
Spark plug
Electrode distance
Cooling system
Cooling liquid
Starting aid
Liquid-cooled, 2-cylinder 4-stroke engine with 75° V arrangement with balancer shaft and electric starter
4 valves controlled over bucket tappet and 2 camshafts, camshaft drive with gears/chain
Intake: 0.10 - 0.15 mm Exhaust: 0.25 - 0.30 mm
Friction bearings (2 main bearings / 1 supporting bearing)
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 5W/40, 10W-50 (f.ex. Motorex Power Synt 4T)
approx. 3.1 liters during oil/filter change or approx. 3.3 liters for dry engine
breakerless transistorized electronic ignition system with digital ignition advance
liquid cooled, permanent circulation of cooling liquid through water pump
2.1 liters, 50% antifreeze, 50% destilled water, at least –25° C
LC8
999.9 cm3
101/62.4 mm
11.8:1
unleaded premium fuel with at least RON 95
Intake: 38 mm Exhaust: 33 mm
Friction bearing
Dual-fuel bearing
Light alloy – forged
Straight-toothed spur wheels 35:67
Multi-disc clutch in oil bath
6-speed claw shifted
1st gear 14:36
2nd gear 16:30
3rd gear 20:30
4th gear 21:27
5th gear 23:26
6th gear 25:26
EFi (Electronic Fuel Injection)
map-controlled
12V 450W at 6000 rpm
NGK CR 8 EK
0.8 mm
0.9 kW electric starter