Hello,
I have a new 2009 Vino 125 that was sitting since 2013, only 41 miles on the scooter. I am having idle issues, I believe due to fuel sitting in the carb for years. First I have replaced the gas, and the bike fires right up, but in order to keep it running I have to keep reeving the throttle. But as soon as I let go of the throttle it dies. I am assuming it it a clogged carb needle or float? Just wanted to ask before taking the carb apart.

Thanks JR

The secondary is probably plugged.

2 options
1 over dose the tank with seafoam and see if you can get the carb to clear itself this normally does the trick with my elite 150 but the longest it has sat is 2 years
2 pull the carb take it apart and clean it

I use quicksilver power tune. You stick it in the fuel line and give her a squirt. Works pretty well. Cleans out the bowl like new. On my 50 I had to actually take out the secondary jet and then stick it in and blow out whatever was plugging it. Let it sit for a minute and then did it again and brown nasty came out.