PIAGGIO 633823 Service Station Manual page 286

Time
This section is devoted to the time necessary to carry out repairs.
For each operation, the description, code and time envisages are specified.
Engine
Code
1 001001
2 001127
3 003064
TIME - 2
ENGINE
Action
Engine from frame - Removal
and refit.
Engine - Complete service
Engine oil - change
MP3 250 i.e.
Duration