PIAGGIO Liberty 50 4tempi 2008, Workshop Manual, Page: 33 / 195

N.B.
TIME THE TIMING SYSTEM UNIT AS DESCRIBED IN CHAP-
TER 6 IF IT IS NOT IN PHASE
Checking the valve clearance
- To check the play in the valves collimate the dis-
tribution timing point references as described
above.
- Use a feeler to make sure the play between the
valve and register screw correspond to the indica-
ted values.
- If the values of the valve play for suction and ex-
haust are different than those shown below, adjust
them by loosening the counternut and using a
screwdriver on the register screw as shown in the
figure.
Characteristic
Inlet (with cold engine)
0.10 mm
Outlet (with cold engine)
0.15 mm
Headlight adjustment
Set the unladen vehicle on level, even ground at a
distance of 10 m from a flat wall or screen that is
sufficiently darkened to be able to see the beam
(see figure).
Make sure that the vehicle axis is at right angles
to the screen. Mark the screen with a horizontal
line 88 ÷ 90 cm from the ground. Start the engine,
securing the throttle twistgrip independently so
that you don't rock the vehicle. Switch on the head-
Liberty 50 4tempi
Maintenance
MAIN - 33