TRD,

You're not really missing much, it's basically just a bottle the size of the engine displacement, so NX-76 it would be a 7.7cc bottle that would store that little bit of left over mixture from the crankcase in between engine rotations, it's supposed to help provide the engine with more bottom end and quicker access to atomized fuel particles. But to me the extra weight (what .0002oz.) isn't even worth it..