KTM 990 SUPER DUKE Owner's Manual page 70

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MAINTENANCE WORK ON CHASSIS AND ENGINE
69
Remove the drain plug [6] on the oil tank and allow the oil to drain into a receptacle. Remove
the screws [7] and tilt the oil return valve [8] to the side.
8
7
6
7
Carefully pull the oil screen [9] out of the oil tank.
9
Thoroughly clean the drain plugs, the cover and both oil screens. Clean all rubber seal rings
and check for damage. Replace if necessary.