Cylinder assy. and timing system
Removing the intake manifold
- Remove the flywheel cover completely as de-
scribed in the flywheel cover section.
- Loosen the 3 crews and remove the intake mani-
fold.
N.B.
TAMPERPROOF SCREWS ARE SUPPLIED WITH 125 CC
MODELS.
Removing the rocker-arms cover
- Remove the 5 screws indicated in the figure
Removing the timing system drive
- Remove the parts listed below first: 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.
B 125-250 Engine
ENG - 139
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