What does a blinking red light under "Piaggi code" on a Vespa ET4 mean?

The Vespa ET4 has fuses on 3 different locations....
1) under the cover on the front shield
2) besides the battery under the seat
3) under the helmet box
under front shiel cover:

- this problem might be a worn variator belt/rollers - Vespa technology requires a variator-belt service every 10'000miles
- contrary to the belief that the carburetor causes such trouble...

if its back firing probably needs inlet valves setting, if it dont then more likely floats on carberretas need looking at...

the Vespa ET4 has fuses on 3 different locations....
1) under the cover on the front shield
2) besides the battery under the seat
3) under the helmet box

in front of the kickstart lever is a nut bolt which you must unscrew.
- but before you do that you need to mark the precise position on the lever axle with a permanent marker - after removing the bolt you can tear off the lever (use WD40 and wobble action)

The battery that powers your scoot has nothing to do with your clock battery. The clock runs on a small round battery directly under the clock. I had to have my shop do it because you have to open up the entire top cover. Cheap fix, and having the date show is great for us oldsters!

you should change the roll bearings in the variator box not only the belt! -the complete servicekit (see pic 3)
https://m.youtube.com/watch?v=zPX_xWPt0Ck

Hi.
did you get the solution for your problem with the fuel gauge? I have the same problem and cant find, and fix the problem..

you need to tell the exact model type, eg. ET4, GT 200 as every model has the battery on another place...!

Something still wrong with the blue key - it has to be reprogrammed again properly...

reprogramming of blue key:
Vespa Vector