Checking The Valve Clearance; Headlight Adjustment - VESPA S 50 4T 4V (2008) Manual

Vespa S 50 4T 4V (2008)

Checking the valve clearance

- Remove the spark plug access cover, undo the
4 fixing screws indicated in the figure and remove
the tappet cover.
- To check valve clearance, centre the reference
marks of the timing system point as described
above.
- Use a thickness gauge to check valve clearance
- If the valve clearance values, inlet and outlet re-
spectively, differ from those indicated below, re-
place the calibrated pads in order to restore the
correct valve clearance.
Characteristic
Inlet (with cold engine)
0.10 mm
Outlet (with cold engine)
0.15 mm

Headlight adjustment

Proceed as follows:
1. Place the vehicle, in running order and with the
tyres inflated to the prescribed pressure, on a flat
surface 10-m away from a white screen situated in
a shaded area, making sure that the longitudinal
axis of the scooter is perpendicular to the screen;
2. Turn on the headlight and check that the bor-
derline of the projected light beam on the screen
is not lower than 9/10 of the distance from the
ground to the centre of vehicle headlamp and high-
er than 7/10;
3. If otherwise, adjust the right headlight with screw
«A».
N.B.
THE ABOVE PROCEDURE COMPLIES WITH THE EURO-
PEAN STANDARDS REGARDING MAXIMUM AND MINI-
MUM HEIGHT OF LIGHT BEAMS. REFER TO THE STATU-
TORY REGULATIONS IN FORCE IN EVERY COUNTRY
WHERE THE VEHICLE IS USED.
Maintenance
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