KTM 250 SX 2003 Owner's Handbook Manual page 97

5-5
2
4
Mount primary drive and clutch
– Grease crankshaft seal ring.
1
– Put the oiled O-ring (25x1.50 mm) onto the crankshaft and mount
the distance bushing with the chamfer facing the crank web.
– Place primary gear
– Put the inner ring onto the main shaft with the collar facing
downwards, then mount the oiled needle cage
– Mount outer clutch hub and stop disc
3
– Apply Loctite 243 to the thread of the main shaft.
– Mount inner clutch hub, new lock washer and hexagon nut to main
shaft.
– Position clutch holder
(74 ft.lb.).
– Remove the clutch holder and secure the hexagon nut by bending
both brackets of the lock washer upwards.
– Apply Loctite 243 to thread of the crankshaft.
– Fit locking washer and hexagon nut (left hand thread) by hand.
– Block primary drive with gear segment
5
hexagon nut with 150 Nm (110 ft.lb.).
– Remove gear segment and check easy running of primary drive by
turning crankshaft.
1
onto crankshaft with collar downwards.
3
.
4 and tighten hexagon nut with 100 Nm
5
and tighten primary gear
2
.