Sat 18 months. Now idles but dies when reved
*sigh* Ok, I made a stupid mistake and I admit it. I own a 2003 Yamaha V-Star 650. I parked it in my basement at the beginning of winter in 2008, say around November. Last year I didn't get it out or start it a single time. I kept meaning to at least run it a little but..., well, life happened. I figure almost 18 months of sitting.
A week ago when the weather turned warm again I tried to start it up and of course it wouldn't start. I charged the battery but the engine wouldn't fire. Assuming it was old gas I siphoned all the old gas out of the tank, and replaced it with fresh gas. Still no fire. I got a can of spray ether, removed the air filter and with a lot of cranking and ether got the engine to eventually run and idle.
With the choke fully out it idled slowly but the RPM never came up like it should as the engine warmed. If you attempt to even tap the throttle the engine dies. If you push the choke in even one click it dies.
Today I again siphoned out the gas, added some fresh, swished it around, siphoned THAT out and added a tank full of fresh I bought today. Same situation. With ether I can get it to start but even after 10-15 minutes of idle it dies instantly if you touch either the throttle or the choke.
I am a "change the oil and plugs" level of mechanic. I am NOT a "take the carb apart and polish the ports by hand" level of mechanic. What do you think the problem is and is this something I can fix myself or should I take it to my local dealer?