VMX5M is a Vespa engine prefix/VIN code.
VMX5M is engine VIN number for 125cc engine used in PK125s, PK125s Elestart vespa models made through years 1982 - 1986.
P.S. This engine VIN number is for the engine block/casing and it doesn't mean that over the years and even accross the models there isn't slight modifications of this engine parts, their sizes or even internals.
VMX5M engine specification
PK125s (1982 - 1986) VMX5M engine specs
Production PK 125 S 61,505 copies Colors white red green Chassis number PK 125 S VMX5T 1101-62606 Engine Cylinders / time 2-stroke single cylinder Displacement 121.1 cc Bore and stroke 55 X 51 mm Compression ratio 9.25: 1 Power / RPM 6.8 hp \ 5600 Torque / revs 0.95 kmm \ 4000 Cooling Forced air Distribution rotating Supply Carburetor orchard 19 Mixture 2% Ignition electronics Start crank electric Clutch multidisc in oil bath Change 4-speed knob Cycling Frame Monocoque Front suspension Pull rod wheel with coil spring and shock absorber Rear Suspension Coil spring and shock absorber Final Drive Direct Wheels Cantilever interchangeable with disk decomposable Front brake Drum 150 mm Rear brake Drum 150 mm Tires 3.00 X 10 front and rear Dimensions and Weight Length 1675 mm Width 700 mm Seat height 790 mm Wheelbase 1175 mm Tank 5.8 liters Weight 88 Kg Performance claims Speed 'maximum 90 Km / h acceleration nd consumption 2 l \ 100 km
PK125s Elestart (1983 - 1986) VMX5M engine specs
Production PK 125 S 61,505 copies Colors white red green Engine Cylinders / time 2-stroke single cylinder Displacement 121.1 cc Bore and stroke 55 X 51 mm Compression ratio 9.25: 1 Power / RPM 6.8 hp \ 5600 Torque / revs 0.95 kmm \ 4000 Cooling Forced air Distribution rotating Supply Carburetor orchard 19 Mixture 2% Ignition electronics Start crank electric Clutch multidisc in oil bath Change 4-speed knob Cycling Frame Monocoque Front suspension Pull rod wheel with coil spring and shock absorber Rear Suspension Coil spring and shock absorber Final Drive Direct Wheels Cantilever interchangeable with disk decomposable Front brake Drum 150 mm Rear brake Drum 150 mm Tires 3.00 X 10 front and rear Dimensions and Weight Length 1675 mm Width 700 mm Seat height 790 mm Wheelbase 1175 mm Tank 5.8 liters Weight 88 Kg Performance claims Speed 'maximum 90 Km / h acceleration nd consumption 2 l \ 100 km
| PK125s | 1982-1986 | PK125s |
| PK125s Elestart | 1983-1986 | PK125s Elestart |