I.30
Part. N. 8000 H0368 (09-2008)
FRONT SUSPENSION
Issues - Possible Causes - Solutions
This section describes some of the issues that may arise during the working life of the fork.
For each issue listed, a possible cause is identified and a possible solution is given. Always consult this table before working on the fork.
ISSUE CAUSE SOLUTION
Oil leaking from the sealing ring 1. Worn sealing ring 1. Replace the sealing ring
2. Scratched stanchion tube 2. Replace the stanchion tube and the
sealing ring
3. Dirty sealing ring 3. Replace the sealing ring,the dust
seal and the oil
Oil leaking from the bottom of the fork leg 1. O-ring seal of the rebound 1. Replace O-ring
screw adjuster damaged
2. Rebound adjuster loose
2. Tighten the rebound adjuster
Loss of sensitivity 1. Sliding bushes worn 1. Replace the sliding bushings
2. Old oil 2. Change the oil
Fork legs not sliding properly 1. Fork legs not aligned correctly 1. Replace any bent or
damaged parts
The fork does not react 1. The pin inside the rod is stuck 1. Clean or replace rod
to adjustment variations 2. The adjustment screw is stuck 2. Take off and clean adjustment
screw
3. Impurities in the oil 3.
Change the oil making sure the
forks ’ inside components
are properly cleaned
4. Valves are blocked with impurities 4.
Change the oil making sure the
forks ’ inside components
are properly cleaned
Fork is too smooth 1. Oil level too low 1. Re-establish correct oil level
with any adjustment 2. Oil viscosity too low 2. Replace the oil with a higher
viscosity one
3. Too soft or damaged spring 3. Replace the spring
Fork is too stiff 1. Oil level too high 1. Re-establish correct oil level
with any adjustment 2. Oil viscosity too high 2. Replace the oil with a higher
viscosity one
3. Too hard spring 3. Replace the spring
Periodical Maintenance Table
Use
Intense Normal
Off-road Road Off-road Road
Check that screws are tightened to required torque Before every ride
Clean the dust seal After every race After every race After every ride After every ride
Change the oil 6 hours 20 hours 30 hours 60 hours
Replace the sealing rings 6 hours 20 hours 30 hours 60 hours
If the fork is used on mudded or sandy grounds, the maintenance operations shall be carried out more frequently 30% .
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