I have a Vespa Won't start.

Either its a bad new battery or tour altenator isn't charging it. Jumpstart it.

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Another thought.. even though you charged the battery, it's not at all uncommon for a car battery to be very damaged by fully discharging. Especially if not new-ish. One or more cells in it may be bad causing the overall voltage to be under normal. This alone can cause the problem you have. I would try jumping it with another car or test the battery to see if it's got at least 12.7 to 12.9 volts when sitting doing nothing. Good luck.

-do you use the right key? (thick brown/black colored) after aou turn the key on, does a light go on on the dashboard?
- seems to be an issue with the lock code of the key (wrong key)
then the engine immobiliser does not allow to start..

Bad battery, needs changed.

Sounds like your battery is just too dead, has enough juice to light up the system for a minute but cranking drains it and if it wont charge then deff fried, you could try removing the battery and starting the car with cables to confirm the starter still works. If a bettery is too dead then when you are jumping it, it takes to much of the power just trying to get through the battery.

Sounds like you have a toasted battery or alternator. Have you performed a load test on the battery? Have you tried to charge the battery? First remove the battery and charge it externally from the vehicle. If the battery won't hold a charge, or won't hold a charge of 12 volts, replace it. Once you have the vehicle started, test the operation of the alternator. It should be putting out at least 13 volts back to the battery to keep it charged - if it is putting less than 13 volts or more than 16 volts, replace the alternator.

the alternator controls the light directly through wiring. So, it's probably a bad alternator.

clean terminals charge battery if it goes dead battery is probably toast .put volt meter on terminals while running should read 14.7 volts if not probably dirty magneto seek professional help

might be the wrong key - try the brown colored master key (not black or blue) teste-o4bn0faalxcoa4vjv5kzyzff-3-0.jpg" alt="vespa-gt-125-bought-yesterday-road-teste-o4bn0faalxcoa4vjv5kzyzff-3-0.jpg" />

Fill battery and charge it.make sure volts are up to par,a dead cell means u need a new battery.