Vespa LX 2012 User Manual

Assembly clearances
Cylinder - piston assy.
CYLINDER - PISTON (125)
Specification Desc./Quantity
Piston diameter 51.961 (±0.014) mm
Cylinder diameter 52 (+0.008 -0.020) mm
CYLINDER - PISTON (150)
Specification
Desc./Quantity
Piston diameter 57.947 (± 0.014) mm
Cylinder diameter 58 (+0.008 -0.020) mm
COUPLING CATEGORIES (125)
Name
Initials Cylinder Piston Play on fitting
cylinder-piston A 51.980 to 51.987 51.947 to 51.954 0.026 ÷ 0.040
cylinder-piston B 51.987 to 51.994 51.954 to 51.961 0.026 ÷ 0.040
cylinder-piston C 51.994 to 52.001 51.961 to 51.968 0.026 ÷ 0.040
cylinder-piston D 52.001 to 52.008 51.968 ÷ 51.975 0.026 ÷ 0.040
COUPLING CATEGORIES (150)
Name
Initials Cylinder Piston Play on fitting
cylinder-piston A 57.980 to 57.987 57.933 to 57.940 0.040 to 0.054
cylinder-piston B 57.987 to 57.994 57.940 to 57.947 0.040 to 0.054
cylinder-piston C 57.994 to 58.001 57.947 to 57.954 0.040 to 0.054
cylinder-piston D 58.001 to 58.008 58.954 to 58.961 0.040 to 0.054
N.B.
THE PISTON MUST BE INSTALLED WITH THE ARROW FACING TOWARDS THE EXHAUST SIDE,
THE PISTON RINGS MUST BE INSTALLED WITH THE WORD «TOP» OR THE STAMPED MARK
FACING UPWARDS.
Characteristics Vespa LX - S 125 3V ie 150 3V ie (2012)
CHAR - 14

Vespa LX 2012 Specifications

General

Engine Type	Single-cylinder, 4-stroke
Displacement	124 cc
Cooling System	Air-cooled
Fuel System	Carburetor
Transmission	Automatic CVT
Fuel Tank Capacity	8.6 liters
Seat Height	785 mm
Curb Weight	114 kg
Length	1, 770 mm
Width	705 mm
Height	1, 140 mm
Max Power	10.3 hp @ 7, 750 rpm
Front Suspension	Single arm with coil spring and hydraulic shock absorber
Front Brake	200 mm
Rear Suspension	Coil spring and hydraulic shock absorber
Rear Brake	110 mm drum