Here's how we set SuperTigre carbs. A few iterations of working with the idle and high-speed mixtures, and the engines usually run very well.

Please be aware that 1-2 tanks of fuel does not "break in' a SuperTigre engine. As they get running time on them, they generally improve. They should take a good "set" after about a gallon or so.

Here's the carb setting link:

http://www.supertigre.com/faq/product-faq.html#q14