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Maintenance
The progressive numeration of each valve is illustrated
EXHAUST
in the photograph on the right.
Note the anti-clockwise direction of the numeration.
B
INTAKE
To facilitate the operation, it is possible to note before-
hand and in order the play values revealed on the strip
of adhesive tape applied to the openings of the air
intake conduits.
These must anyway also be written in the table previ-
ously illustrated.
Rotate the crankshaft 360° by turning the central nut.
The rotation of the crankshaft must always be done in
an anti-clockwise direction.
The operation just described is completed when piston
n° 4 is in the Top Dead Centre position (T.D.C.) of the
compression stroke.
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