Vittorazi Motors Moster 185 Plus Maintenance Manual page 44

Disconnect the silencer (4) from the exhaust pipe and remove the gasket (5).
Before disassembling de silencer mark the position of the end caps with an erasable marker
Drill the 8 rivets centrally using a drill with a 5 mm diameter bit.
POSITION
REFERENCE
MARK
Moster 185 Plus - Maintenance manual - V1 44