Vittorazi Motors Moster 185 Plus Maintenance Manual page 109

Remove the 4 self-locking nuts M8 (1) with washers (2) from the engine head (3).
Remove the head (3), the O-ring (4), the cylinder (5) and the gasket (6).
Close the inside of the crankcase with paper to prevent foreign bodies from accidentally
falling into the engine.
Moster 185 Plus - Maintenance manual - V1 109