On Thu, 26 Nov 2015 18:23:52 -0500, wrote:

On Thu, 26 Nov 2015 16:38:17 -0500, Micky
wrote:

If you found a 1/8" hose connected at one end to the motorscooter
carburetor, but couldn't figure out where the other end went, would
you plug the hose or leave it open?

What if you noticed that the hose was 2 inches long, bent 90 degrees
1/2" from the carbueretor, and cut on one end at a 30^ angle like some
string beans are cut? Change your answer?

What if you found a place with a few motorscooters in stock, mostly
junk and the second one he showed you had a very similar carburetor
with the exact same hose on it, 2", cut like a string bean at the
other end?

Do you think it's important to actually have the hose or can I just
leave the port open? I lost the hose and it was torn at the
connecting end anyhow. What's the purpose of a 2" hose versus
nothing at all?

Sounds like a vent and they put the hose on to get any fuel that may
come out to get away from the carb (or to make it harder to get dirt
in)

It has to be to keep dirt out. There's no sign of gas residue
anywhere.

What I shoudl have done, could have done in the 30 seconds the thing
was running, is put my finger on the nipple, to see if it's sucking
air in. Or a piece of paper like a diaphragm. Tomorrow.

There is a similar hose on a Mercury outboard VST. It just dead ends
down in the lower cowl.

I found lots about VST engines, but coudln't find out what VST stood
for or what made the engine VSt.