KTM 450 SX-F EU Repair Manual page 25

Ol/FORK, TRIPLE CLAMP
20066&-10
200666-10
200892-10
- Measure the outside diameter of the inner tube at several locations.
Outside diameter of the inner tube 47.975 ... 48.005 mm (1.88878 ...
1.88996 in)
>
If the measured value is less than the specified value:
- Change the inner tube.
- Measure the run-(lut of the inner tube.
Iinner tub run-out I ,; 0.20 mm (,; 0.0079 in)
>
If the measured value is greater than the specified value:
- Change the inner tube.
- Measure the inside diameter of the outer tube at several locations.
I Inside diameter of the outer tube
I ,;
49.20 mm (,; 1.937 in)
>
If the measured value is greater than the specified value:
- Change the outer tube.
- Check the outer tube for damage.
>
If there is damage:
- Change the outer tube.
- Check the surface of the sliding bushing.
25
>
If the bronze-colored layer under the sliding layer is visible or the surface
is rough:
- Replace the sliding bushing.
- Check the spring length.
Guideline
I Spring length with preload spacer(s)
1497 mm (19.57 in)
>
If the measured value is greater than the specified value:
- Reduce the thickness of the preload spacers.
>
If the measured value is less than the specified value:
- Increase the thickness of the preload spacers.
- Check the check valve spring length.
Guideline
I Spring length of the check valve
I
l!:
5.8 mm
(l!:
0.228 in)
>
If the measured value is less than the specified value:
- Change the spring.