Removing The Rocker-Arms Cover; Removing The Timing System Drive - PIAGGIO 633929(IT) Service Station Manual

MP3 125

Removing the rocker-arms cover

- Remove the 5 screws indicated in the figure

Removing the timing system drive

- First remove the parts listed below: transmission
cover, drive pulley with belt, oil sump with spring
and by-pass piston, oil pump pulley cover, O-ring
on the crankshaft and the sprocket wheel separa-
tion washer.
- Remove the tappet cover.
- Remove the central screw fastener and the au-
tomatic valve-lifter retaining cover, as shown in the
figure.
- Remove the return spring of the automatic valve
lifter unit and the automatic valve lifter unit and its
end of stroke washer.
Engine
ENG - 27