Gilera DNA 50, Workshop Manual

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Possible Cause Operation
the seats in which the ball bearings rotate: replace
if they are recessed.
Excessive steering play
EXCESSIVE STEERING CLEARANCE
Possible Cause Operation
EXCESSIVE STEERING CLEARANCE Check the tightening of the top and bottom ring
nuts.
If irregularities continue in turning the steering
even after making the above adjustments, check
the seats in which the ball bearings rotate: replace
if they are recessed.
Noisy suspension
NOISY SUSPENSION
Possible Cause Operation
Components of the front suspension damaged. Check the quiet operation in the compression or release pha-
ses of the fork and if necessary overhaul it. Check that there is
no noise or seizing during the wheel rotation; if there is, change
the wheel bearing.
Components of the rear suspension damaged. Check the absence of noise in the compression or release of
the suspension, if necessary check the proper tightness to the
swinging arm unit and the absence of rust or replace the entire
shock absorber. Check that there is no noise or seizing during
the wheel rotation; if there is noise or seizing overhaul the final
reduction assembly.
Suspension oil leakage
SUSPENSION LEAKS OIL
Possible Cause Operation
Rear shock absorption malfunctioning Replace the complete shock absorption unit
Hydraulic cartridge in the fork damaged. Replace the hydraulic cartridge
Troubleshooting
DNA 50
TROUBL - 40