Diagnostics
Finding the problem
Finding the possible cause
Possible solutions proposed
Fork doesn't get full travel
Oil level too high
Check oil levels
Fork extends too quickly; harsh top-out after
impacts
Rebound damping is not enough
Increase rebound damping
Fork extends too quickly; harsh top-out after
impacts
Rebound damping is not enough
Replace the oil (SAE 7.5) with one of higher
viscosity index
Fork has too much sag
Oil is too fluid
Check oil levels
Fork is “sticky”; fork does not perform as new
Dirty sealing rings; fork needs to be
serviced
Renew all seals
Fork is too soft, but the sag is the one
recommended
Compression damping is not enough
Increase compression damping by changing oil
volumes
Fork is too soft, needs more than the maximum
preload
Oil is too fluid
Check oil levels
Fork stays down or "packs up" during multiple
impacts
Rebound damping is too high
Decrease rebound damping with the relevant
register
Front wheel tends to tuck under while turning left
or right
Rebound damping is too high
Decrease rebound damping with the relevant
register
Heavy amount of oil on stanchions; oil dripping
down legs
Sealing rings damaged
Renew all seals
Heavy amount of oil on stanchions; oil dripping
down legs
The stanchion tubes could be damaged
Have the stanchions be checked
Knocking sound during rebound, but no harsh top-
out
Rebound damping is too high
Decrease rebound damping with the relevant
register
Loss of sensitivity
Old oil
Change the oil
Loss of sensitivity
Sliding bushes worn
Renew the sliding bushes
Oil leaking from the bottom of the fork leg
Bottom nut/screw loose
Tighten the nut or screw
Oil ring on stanchions
Sealing rings dirty
Renew all seals
© Marzocchi Suspension
2005
-
Marathon XC
