KTM 300 EXC - 12.12 Adjusting the Steering Head Bearing Play

SERVICE WORK ON THE CHASSIS 12
63
Info
If the vehicle is operated for a lengthy period with play in the steering head bearing, the bearings and the
bearing seats in the frame can become damaged over time.
Preparatory work
– Raise the motorcycle with a lift stand. ( p. 56)
H01167-01
Main work
– Move the handlebar to the straight-ahead position. Move the
fork legs to and fro in the direction of travel.
Play should not be detectable on the steering head bearing.
» If there is detectable play:
– Adjust the steering head bearing play. ( p. 63)
– Move the handlebar to and fro over the entire steering range.
It must be possible to move the handlebar easily over the
entire steering range. There should be no detectable detent
positions.
» If detent positions are detected:
– Adjust the steering head bearing play. ( p. 63)
– Check the steering head bearing and change if neces-
sary.
Finishing work
– Remove the motorcycle from the lift stand. ( p. 56)
12.12 Adjusting the steering head bearing play
Preparatory work
– Raise the motorcycle with a lift stand. ( p. 56)
S03652-10
Main work
–
Loosen screws
1
and
2
.
–
Loosen and retighten screw
3
.
Guideline
Screw, top steering
head
M20x1.5 12 Nm (8.9 lbf ft)
– Using a plastic hammer, tap lightly on the upper triple clamp
to avoid stresses.
–
Tighten screws
1
.
Guideline
Screw, top triple
clamp
M8 20 Nm (14.8 lbf ft)
–
Tighten screw
2
.
Guideline
Screw, top steering
stem
M8 20 Nm (14.8 lbf ft)
Finishing work
– Check steering head bearing play. ( p. 62)
– Remove the motorcycle from the lift stand. ( p. 56)