Derbi boulevard 125 4t Workshop Manual page 43

Maintenance
- Remove the 4 flywheel cover screws indicated in
the photograph and remove the flywheel cover.
- Remove the filter indicated in the photograph
- Check that the gasket is in good conditions
- Check the SAS filter housing for dents or defor-
mations
- Clean the SAS filter carefully. Replace the filter if
it is damaged or deformed.
To refit, carry out the removal operations but in re-
verse order.
CAUTION
WHEN TRAVELLING ON DUSTY ROADS, THE
AIR FILTER MUST BE CLEANED MORE OFTEN
THAN SHOWN IN THE SCHEDULED MAINTE-
NANCE CHART.
CAUTION
NEVER RUN THE ENGINE WITHOUT THE SEC-
ONDARY AIR FILTER
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