Montesa COTA 4RT RACE REPLICA Owner's Manual page 88

Engine servicing
(1) SEALING BOLT/SEALING WASHER
(2) CYLINDER
2
(1) GASKET
(2) DOWEL PINS
Remove the mounting sealing bolt, sealing washer and
cylinder.
Remove the gasket and dowel pins.
4-30 4-30
2
1
(1) PISTON PIN CLIP
(2) PISTON PIN
Piston Removal
2
Place a clean shop towel over the crankcase to prevent
the clip from falling the crankcase.
Remove the piston pin clips with pliers.
1
Press the piston pin out of the piston and remove the
piston.
2
1
Spread the piston rings and remove them by lifting up at
a point just opposite the gap.
Piston rings are easily broken; take care not to damage
them during removal.