Carburettor
50cc Version
Dell'Orto
DELLORTO CARBURETTOR
Specification
Desc./Quantity
Type
PHVA 17.5 RD
Diffuser diameter
Ø 17.5
Regulation reference number
8423
Maximum nozzle:
53
Maximum air nozzle (on the body):
Ø 1.5
Tapered pin stamped code:
A22
Pin position (notches from above):
1
Diffuser:
209 HA
Minimum nozzle:
32
Minimum air nozzle (on the body):
Free
Initial minimum mix screw opening:
1 1/2
Starter jet
50
Starter air nozzle (on the body):
Ø 1.5
Stroke of starter pin:
11 mm
Gasoline inlet hole
Ø 1.5
Tightening Torques
FRONT BRAKE
Name
Torque in Nm
Brake fluid pump-hose fitting
8 ÷ 12
Brake fluid pipe-calliper fitting
20 ÷ 25
Screw tightening calliper to support
20 ÷ 25
Brake disc screw
5 ÷ 6.5
Oil bleed valve (on the calliper)
10 ÷ 12
Handlebar pump
7 ÷ 10
FRONT SUSPENSION
Name
Torque in Nm
Shock absorber upper nut
20 ÷ 30
Front wheel axle nut
75 ÷ 90
Shock absorber upper bracket bolts
20 ÷ 25
Wheel rim screws
20 ÷ 25
Shock absorber lower bolts (°)
20 ÷ 27
STEERING ASSEMBLY
Name
Torque in Nm
Upper steering ring nut
35 ÷ 40
Steering lower ring nut
8 ÷ 10
Handlebar fixing screw
50 ÷ 55
ENGINE ASSEMBLY
Name
Torque in Nm
Clutch bell nut (**)
40 ÷ 44
Clutch lock ring nut
55 ÷ 60
Nut locking driving pulley on crankshaft (**)
40 ÷ 44 Nm
Start-up lever screw
12 ÷ 13
Flywheel nut (**)
40 ÷ 44
Characteristics
Vespa LX 50
CHAR - 12
Summary of Contents for LX 50
Page 1: ...WORKSHOP MANUAL 633416 Vespa LX 50 ...
Page 4: ......
Page 6: ...INDEX OF TOPICS CHARACTERISTICS CHAR ...
Page 16: ...INDEX OF TOPICS TOOLING TOOL ...
Page 27: ...INDEX OF TOPICS MAINTENANCE MAIN ...
Page 38: ...INDEX OF TOPICS TROUBLESHOOTING TROUBL ...
Page 44: ...INDEX OF TOPICS ELECTRICAL SYSTEM ELE SYS ...
Page 58: ...INDEX OF TOPICS ENGINE FROM VEHICLE ENG VE ...
Page 60: ...INDEX OF TOPICS ENGINE ENG ...
Page 91: ...INDEX OF TOPICS SUSPENSIONS SUSP ...
Page 107: ...INDEX OF TOPICS BRAKING SYSTEM BRAK SYS ...
Page 113: ...INDEX OF TOPICS CHASSIS CHAS ...
Page 118: ...INDEX OF TOPICS PRE DELIVERY PRE DE ...
Page 122: ...INDEX OF TOPICS TIME TIME ...