If in fact Popriv's engine is a Thundertiger Pro in any of the displacements and it has not been modified then it indeed has a twin needle carbs not a bleeder.

On the link you posted just push for technical description and it even notes this is a twin needle carb.

da Rocks description of how to set up a bleeder midrange is quite good and can be usefull to folks with this type of carb as is alfredbmor's description for doing the same with a twin needle type.


I would like to ad the importance of knowing exactly what type of carb your engine has as there is a critical difference between the two:

Bleeder carbs are leaned by screwing low range screw out.

Twin needle carbs are leaned by screwing the low range needle in.

This applys to all current brands

The most common mistake for new folks with bleeder carbs is to screw the low range screw in to lean. Or try to adjust the midrange with the idle stop screw (wrong screw) which does nothing.