- 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 with the engine cold.
- Remove the spark plug.
- Fit a compression test gauge into the spark plug seat using a 10 mm spark plug union at the proper
tightening torque.
- Turn the switch to "ON", wait a few seconds and the disconnect the connector of the revolution sensor
to prevent the function of the injector and the spark plug.
- Allow the engine to run using the starter and with the throttle body in fully open position as long as the
gauge value is steady.
- If the pressure is higher than specified, remove the tool and reassemble the scooter.
- 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 the final compression pressure is less than specified, remove the pressure gauge connector and inject
a few cc of oil into the combustion chamber, then turn the engine over (preferably by hand) to lubricate
the cylinder.
Repeat the compression test:
If the new value is also too low, check the valve seating.
Higher compressions on a new engine indicate poor seating of the segments.
Characteristic
Compression ratio
10.5: 1
Locking torques (N*m)
Spark plug 12 ÷ 14
Maintenance Nexus 500 euro 3
MAIN - 42
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