When I start my 2003 Vstar 1100 Classic, and as i give it throttle during ideling, it dies out? Also as im driving my bike and i come to a red light and i down shift and the idle lowers, it dies out, but it does start back up.

There are a few quick things to try before cleaning the carbs.

1.Clean your air filter, it may be choking out, trust me a dirty air filter will choke out a bike.
2.Check your spark plugs. If they are black and sooty, change them out. Its quick and less expensive.

I diagnosed a 2001 Roadking Fuel injected. Ran like ****, hardly any throttle response, died at idle.
the customer said he just had it serviced a month ago at the dealer.
I pulled the plugs and they were nasty. The dealer forgot to change out the sparkplugs. It Happens
I Put in a new set of spark plugs and the bike ran like new.
I've fixed a bunch of bikes in the past and this one always stuck in my mind because of the difference in performance.

Try the sparkplugs, i think its more likely to be that than the air filter.