Checking The Play Of The Steering Head Bearing; Adjusting The Play Of The Steering Head Bearing - KTM 125 SX Owner's Manual

MAINTENANCE WORK ON THE CHASSIS

Checking the play of the steering head bearing

11.13
Warning
Danger of accidents Unstable vehicle handling from incorrect steering head bearing play.
–
Adjust the steering head bearing play without delay. (Your authorized KTM workshop will be glad to help.)
Info
If the bike is ridden with play in the steering head bearing, the bearing and the bearing seats in the frame can become dam-
aged over time.

Adjusting the play of the steering head bearing

11.14
–
Position the brake calipers. Mount and tighten screws
Guideline
Screw, front brake caliper
–
Position the brake line and clamp. Mount and tighten screws
–
Install the front fender. (
–
Install the start number plate. (
–
Check that the wiring harness, throttle cables and brake and clutch lines can move
B00379-11
freely and are routed correctly.
–
Install the front wheel.
–
Check the play of the steering head bearing. (
–
Raise the motorcycle with the lift stand. (
–
Move the handlebar to the straight-ahead position. Move the fork legs to and fro in
the direction of travel.
No play should be noticeable in the steering head bearing.
» If there is noticeable play present:
–
Adjust the play of the steering head bearing.
–
Move the handlebar to and fro over the entire steering range.
The handlebar must be able to move easily over the entire steering range. There
should be no perceptible detent positions.
400738-11
» If detent positions are noticeable:
–
Adjust the play of the steering head bearing.
–
Check the steering head bearing and replace if required.
–
Remove the motorcycle from the lift stand. (
x
–
Raise the motorcycle with the lift stand. (
–
Loosen screws
–
Loosen and retighten screw
Guideline
Screw, top steering head
–
Using a plastic hammer, tap lightly on the upper triple clamp to avoid strains.
–
Tighten screws
Guideline
Screw, top triple clamp
B00299-10
–
Mount and tighten screw
Guideline
Screw, top steering stem
–
Check the play of the steering head bearing. (
M8
p. 43)
p. 43)
( p. 64)
x
. Remove screw .
 
.

M20x1.5
.

M8
.

M8
.

25 Nm Loctite ® 243™
(18.4 lbf ft)
.

p. 42)
p. 37)
( p. 42)
x
( p. 42)
x
p. 37)
p. 37)
10 Nm (7.4 lbf ft)
17 Nm
(12.5 lbf ft)
17 Nm Loctite ® 243™
(12.5 lbf ft)
p. 42)
42