KTM 125 EXC Motorcycle User Manual


 
ENGLISH
29
MAINTENANCE WORK ON CHASSIS AND ENGINE
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Mount the lower triple clamp, upper steering head bearing, protection ring,
O-ring, upper triple clamp and the blind screw.
Tighten the collar screw on the lower triple clamp to 60 Nm.
Mount the fork legs and tighten the clamp screws on the lower triple clamp
to 12 Nm in 3 stages.
Adjust the steering head bearing with zero clearance (see section on checking
and adjusting the steering head support). Hold the middle clamp screw [A]
in place with Loctite 243. Tighten the clamp screws on the upper triple clamp
to 20 Nm in 3 stages.
Hold the middle clamp screw [A] in place with Loctite 243.
Mount the front wheel fender and tighten the screws to 10 Nm.
Mount the hand brake cylinder and tighten the screws to 10 Nm.
Mount the staring number plate.
Mount the front wheel (see: Dismounting and mounting the front wheel).
Checking and adjusting the steering head bearing *
Check steering head bearing for play periodically. To check, put the motorcycle
on a stand so that the front wheel is off the ground. Now try to move the fork
forward and backward. To adjust the 5 clamping screws [1] and [3], loosen the
upper triple clamp and turn the end screw [2] until no play is left. Don’t tighten
the steering stem bolt all the way, otherwise the bearings will be damaged. With
a plastic hammer, lightly tap on the triple clamp to release tension. Retighten
the five pinch bolts.
XC, EXC Six Days . . . . . . . . . . . . . . . . . . .17 Nm (clamp screw 1)
XC, EXC Six Days . . . . . . . . .Loctite 243 + 17 Nm (clamp screw 3)
XC-W, EXC . . . . . . . . . . . . . . . . . . . . .20 Nm (clamp screw 1 + 3)
If the steering head bearing is not adjusted to be free of play, the motorcy-
cle will exhibit unsteady driving characteristics and can get out of control.
XC, EXC Six Days: hold the clamp screw [3] in place with Loctite 243.
If you drive with play in the steering head bearing for longer periods, the bear-
ings and subsequently the bearing seats in the frame will be destroyed.
The steering head bearings should be regreased at least once a year
(e.g. Motorex Long Term 2000).
2
1
1
3
A