Vittorazi Motors Moster 185 Plus Maintenance Manual page 20

Check the filter, in particular the bonding with the sleeve and the various parts of the sponge.
Check the Snaplock, in particular the central hole (the photo shows a comparison between a new
component on the left and a worn one on the right).
Connect the Snaplock to the pin on the motor to check that the engagement is stable.
If the above components are damaged, replace them immediately. For routine
maintenance, follow the table.
Use extreme caution when checking, as failure to replace damaged components can lead
to detachment of the airbox and impact with the propeller.
Moster 185 Plus - Maintenance manual - V1 20