insulator is cracked or broken. If
the spark plug is in good
conditions, contact an
Authorised
Service Centre.
L
ACK
OF
COMPRESSION
Spark plug loose. Loose cylinder
head, worn piston retaining rings.
Contact an
Authorised Service
Centre.
HIGH CONSUMPTION AND LOW PERFORMANCE
Air filter blocked or dirty.
Clean with water and shampoo and
impregnate with petrol and specific
oil («Air filter removal» section)
INEFFICIENT BRAKING
Oil on drum or disc. Worn Pads/
Shoes
Contact an
Authorised Service
Centre
incorrect rear brake adjustment
Adjust
58
3 Maintenance
Summary of Contents for S 50 4T 4V
Page 4: ...4 ...
Page 6: ...6 ...
Page 7: ...Vespa S 50 4T 4V Chap 01 Vehicle 7 ...
Page 9: ...01_01 9 1 Vehicle ...
Page 10: ...01_02 10 1 Vehicle ...
Page 19: ...Vespa S 50 4T 4V Chap 02 Use 19 ...
Page 30: ...30 2 Use ...
Page 31: ...Vespa S 50 4T 4V Chap 03 Maintenance 31 ...
Page 45: ...03_25 03_26 03_27 45 3 Maintenance ...
Page 61: ...Vespa S 50 4T 4V Chap 04 Technical data 61 ...
Page 62: ...04_01 62 4 Technical data ...
Page 67: ...Vespa S 50 4T 4V Chap 05 Spare parts and accessories 67 ...
Page 69: ...Vespa S 50 4T 4V Chap 06 Programmed maintenance 69 ...