People 250...where does this carburetor wire go?

[Jevid]

I've looked through my service manual and can't figure it out. Just to the right of the green wire, there is a nipple that looks like it would have a vacuum wire attached there, but maybe the yellow wire goes there? That seems like the obvious spot but I don't know for sure. Does anybody here have an idea?  This is on a 2007 People 250 (non-S) Thanks -

[gregspeople250]

You're right, it goes on the nipple connector to the right.  
How does it run with this disconnected?

[Jevid]

Well I made it to work fine this morning so it still runs   I had everything apart this weekend to install a new belt & replaced my rollers with sliders, so it felt different this morning but I can't say if it was due to the belt & sliders or this wire. When I get home today, I'll plug it back in and see if I notice any difference. Thanks for the info!

[baddi]

Perhaps it is a carburator heater to prevent ice in the carburator in the winter?
Earlier, people used carburator-fluid in the winter to make sure that there would be no ice in the carb, but now (at least in Denmark), there are added 5% ethanol to all fuel to eliminate the need for this.