Stem
Check the sliding surface for scorings and/or scratches.
These scorings can be eliminated by rubbing them with wet sandpaper (grain 1).
If the scorings are deep, replace the stem.
Use a dial gauge to check that the stem bending is below the limit value.
If over the value, replace the stem.
Caution! A bent stem should never be straightened because its structure would be weakened and using the vehicle may become dangerous.
Characteristic:
- Bending limit: 0.2 mm (0.00787 in)
Sleeve
Check that there are no damages and/or cracks; otherwise, replace it.
Spring
Check that the spring is in good conditions. Check that the spring length is within the limit value.
Replace the spring if its length does not fall within the limit values.
- Spring minimum length when unloaded: 300.8 mm (11.84 in)
Check that the following components are in good conditions:
- sliding bushing;
- guide bushing;
- pumping member pin.
If there are signs of excessive wear or damage, replace the affected component.
Caution! Remove any impurity in the bushings, taking care not to scratch their surface.
Replace the following components with new ones:
- oil seal
- dust guard
See also specifications for this operation in this chapters: handlebar, front fork, steering.