Vespa LX 2012 User Manual

Removing the piston
- Fit the piston and pin onto the connecting rod,
aligning the piston arrow towards the engine di-
rection of rotation.
CAUTION
AT EVERY NEW MOUNTING USE RETAINER RING PINS.
Choosing the gasket
- Provisionally fit the piston into the cylinder, without any base gasket.
- Assemble a dial gauge on the specific tool.
Specific tooling
020942Y Piston protrusion check tool
- Using an abutment plane, reset the dial gauge
with a preload of a few millimetres.
- Finally fix the dial gauge.
- Check the perfect sliding of the feeler pin.
- Install the tool on the cylinder without changing
the dial gauge position.
- Lock the tool using the original head fixing nuts.
- Rotate the crankshaft up to the TDC (the inver-
sion point of the dial gauge rotation)
- Measure the deviation from the reset value.
Vespa LX - S 125 3V ie 150 3V ie (2012) Engine
ENG - 153

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