Modern Vespa

Hi, for my GTS I bought used front from other GTS and I look rust stain between front directions inside the body. At first I thought that this part was outside and there was just water standing there. But I read a many posts on MV and I look this same rust stain on other Vespas. Do you think that after every rain the water stands in this place (due to the lack of drainage) and the body corrodes? Below pictures....

I wonder if water condensates there on the inside?

That would probably be quite a cold point as its the largest bit of metal on the front of the vespa, going directly into the wind.

I think it's quite likely that water leaks in there through the horn cover. That said, the rust looks like surface rust — at the point where you've got the body stripped of all parts, it shouldn't be difficult to address.

Paulamimo,

Great work. You are Sherlock Holmes. Perhaps share this with the Vespa factory. But God Bless them, do not expect the Italians to jump on this.

Bob Copeland

Its quite common, Jess has it right, its due to water ingression through horn/riding light cowl/cover usually light corrosion but can get worse if you over fill the coolant tank that can be corrosive and make it worse.
Remedy, remove the surface rust and waxoyl the area or if you are doing a full resto after paint just waxoyl the area dries transparent.
Got a few of my own photos like that