PIAGGIO B 250 - Vehicle Identification

Vehicle identification
VEHICLE IDENTIFICATION (125)
Specification Desc./Quantity
Chassis prefix (125) ZAPM 28400 ÷ 1001
Engine prefix (125) M284M
VEHICLE IDENTIFICATION (250)
Specification Desc./Quantity
Chassis prefix (250) ZAPM 28500 ÷ 1001
Engine prefix (250) M285M
Dimensions and mass
WEIGHTS AND DIMENSIONS
Specification Desc./Quantity
Kerb weight in running order 149 kg
Width (over mirrors) 837 mm
Length 2100 mm
Wheelbase 1455 mm
Saddle height 785 mm
Engine
ENGINE
Specification
Desc./Quantity
Engine type Single-cylinder, four-stroke, four-valve, liquid-cooled.
Timing system Single overhead camshaft driven by chain on left side, three-
arm rockers with threaded adjuster.
Bore x stroke (125) 57 x 48,6 mm
Bore x stroke 72 x 60 mm
Cubic capacity (125) 124 cm³
Cubic capacity 244,290 cm3
Compression ratio (125) 12:1
Compression ratio (250) 10,5 - 11,5 : 1
Keihin Carburettor (125 - 250) CVEK-30
Walbro Carburettor (125) WVF 7G* Ø 29
Walbro Carburettor (250) WVF-7S*
Engine idle speed 1650 ± 50 rpm
CO adjustment 3,8 ± 07%
Air filter Sponge-type damped with a 50% Selenia Air Filter Oil - 50%
unleaded petrol mixture
Starter System Electric starter motor
Lubrication Engine lubrication with lobe pump (inside crankcase) controlled
by a chain with double filter: mesh and paper.
Fuel supply with unleaded petrol; carburettor and vacuum pump.
Max. power (crankshaft) 125cc 11 kw (15 CV) at 9700 rpm
Max. power (crankshaft) 250cc 16,18 Kw (22CV) a 8250 g/min.
Top speed (125) 105 Km/h
Top speed (250) 124 Km/h
*The identification marking may change whenever the carburettor is updated
Characteristics B 125-250
CHAR - 8