PIAGGIO Fly 50 4t 4v Manual page 54

I
GNITION PROBLEMS
No spark from spark plug. Due to
the presence of high voltage, this
check should only be carried out by
an expert.
L
ACK OF COMPRESSION
Spark plug loose. Loose cylinder
head, worn piston retaining rings.
HIGH CONSUMPTION AND LOW PERFORMANCE
Air filter blocked or dirty.
Make sure the electrodes are
properly adjusted. Check that they
are (clean with pure petrol and a
metal brush or with emery cloth).
Check the spark plug insulator:
Replace the spark plug if the
insulator is cracked or broken. If
the spark plug is in good
conditions, contact an Authorised
Service Centre.
Contact an Authorised Service
Centre.
Clean with water and shampoo and
impregnate with petrol and specific
oil («Air filter removal» section)
54