PIAGGIO Liberty 125 User Manual

Rod small end check-up: Standard diameter
15+0.015+0.025 mm
Inspecting the wrist pin
- Check the outer diameter of the gudgeon pin.
Characteristic
Standard pin diameter
14.996 ÷ 15 mm
Minimum diameter permitted
Ø 14.994 mm
- Calculate the piston pin coupling clearance.
N.B.
THE PIN HOUSINGS HAVE 2 LUBRICATION CHANNELS.
FOR THIS REASON MEASUREMENT OF THE DIAMETER
MUST BE CARRIED OUT ACCORDING TO THE AXIS OF
THE PISTON.
Characteristic
Piston pin bore - standard diameter
Ø 15+0.001 +0.006
- Measure the outside diameter of the piston, per-
pendicular to the gudgeon pin axis.
- Measure 36.5 mm from the piston crown's shown
in the figure.
N.B.
THE PIN HOUSINGS HAVE 2 LUBRICATION CHANNELS.
FOR THIS REASON MEASUREMENT OF THE DIAMETER
MUST BE CARRIED OUT ACCORDING TO THE AXIS OF
THE PISTON.
- Using a bore meter, measure the inner cylinder
diameter at three different points according to the
directions shown in the figure.
- Check that the coupling surface with the head is
not worn or misshapen.
- Pistons and cylinders are classified into catego-
ries based on their diameter. The coupling is car-
ried out in pairs (A-A, B-B, C-C, D-D).
Characteristic
Liberty 125 - 200 4tempi Engine
ENG - 93

PIAGGIO Liberty 125 Specifications

General

Displacement	124 cc
Fuel System	Electronic Injection
Front Suspension	Hydraulic telescopic fork
Rear Brake	140 mm drum
Front Tire	90/80 - 16"
Rear Tire	100/80 - 14"
Wheelbase	1, 340 mm
Length	1, 945 mm
Width	690 mm
Seat Height	790 mm
Engine Type	Single cylinder, 4-stroke
Torque	10.4 Nm @ 8, 000 rpm
Cooling System	Air cooled
Transmission	CVT
Rear Suspension	Single shock absorber
Front Brake	240 mm disc
Fuel Tank Capacity	6 liters
Weight	124 kg