PIAGGIO Beverly 500 i.e. - Checking the End Compression Pressure

- Otherwise, adjust the right headlight by the screw
shown in the figure, which can be accessed by re-
moving the front shield connecting member.
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.
Checking the end compression pressure
•
Remove the spark plug cap when the engine is cold.
•
Remove the ignition spark plug.
•
Fit a compression test gauge into the spark plug seat using a 10 mm spark plug union at
the proper tightening torque.
•
Disconnect the revolution-timing sensor connector.
•
Let the engine run using the starter and with the throttle body in fully open position as long
as the gauge value is steady. If pressure is correct (> 11 bar), remove the tool and reinstall
the spark plug, the cap and the rev counter connector.
•
If the pressure is less than indicated, check the rpm at which the test is carried out; if it is
less than 450 rpm, check the starter system; if not, check the following:
•
Distribution timing
•
Valve clearance
•
Check valve seal
•
Check lining seal
•
Proper compression ratio selection
Locking torques (N*m)
Fitting for compression test 10
Beverly 500 i.e. Maintenance
MAIN - 31