Having abit of troube with the carb. It idles perfect with the lever up but dies when throttling. No matter how much i adjust air and fuel it's still the same but gets better. When i have the lever down it has higher idle and can throttle propely with out dieing. Is this something with air...

http://pages.ebay.com/motors/link/?nav=item.view&id=141791570486&alt=web They make "1.45 psi" or 10000pa. Want more scientific data than opinion.