Originally Posted by bdpratt

Hi. I hope someone can put me on the right trak. Any help is much apprciated.

I have a 2003 Sportrax 300 ex, completely stock.

I hadn't started it in about a year, until recently. It starts ok and idles, but if I give it any gas, it dies. Under throttle, the bike gives a whaop whaop whaop sound and dies immediatly. I thought maybe the throttle jet was plugged, from old gas.
So I removed the carb and cleaned it out with carb cleaner. Put it all back together. Replaced the gas with new 92 octane.
It's still doing the same thing. Any idea to get me looking in the right direction?

Thanks!