I use stubby screwdrivers for all my carb work, even when the carbs are off the bike. Well, I try to anyway. Sometimes part removal will call for something bigger, sometimes even a T-handle. But, for assembly and especially jet install, it's always a stubby. What I like even better is one of these finger bit holders .....
As far as 1/4" drive bits to fit the jets, I've taken to custom grinding my own for a precise fit. It's hard to find common screwdrivers that fit exactly because the jets have metric sized slots in them .....
As far as 1/4" drive bits to fit the jets, I've taken to custom grinding my own for a precise fit. It's hard to find common screwdrivers that fit exactly because the jets have metric sized slots in them .....