You were right !!! I was just rotating the fuses and the gas meter got fixed at once. I have not yet done the Carburetor thing. Some of the symptoms of the engine problems as is running now are following:
1-As soon as I give ignition, the engine accelerates by it self, goes to 60-70% pick, and comes down.
2-As it settles down I feel there is not a steady level of acceleration and it lets say oscillates a 10% up and down.
3-Often there is some sort of tremor in the whole engine, without consequences, meaning the tremor never ends in a shut off.
Before opening the carburetor I pass this feed back on the way the scooter is running. As it shut off stopping totally a couple of times two days ago, I pose the question if this is due to carburetor malfunction, dirt in the hoses, electrical failure, mechanical failure meaning the needle not performing as due.
Thank you for your help again. At least I solved the problem of the gas meter, so far.
Greetings,
Aquaviva