TWINMAX carbs balancer

Just got mine today........ Nice little device,about 4X3X2...3 buttons: on/off, zero and sensitivity. 2 tubes and a 1 needle gauge. All you do is conect tube A to carb #1(fixed carb) and connect tube B to the #2 carb,synch, and so on...then repeat with throttle held at 4k rpms(just like the others). The cool thing is that it doesnt need to be hanged,just laying or whatever suits you. It also works with a 9V battery(provided)since there are no ball bearings,springs,liquids or anything,its electronic,solid state. I cant wait to try it this spring.

i need to balance mine, but i only have the carbtune 2. Ive gota hang mine....Its spring, how did it work?

Very well...only hassle is that you have to remove the adaptor and place it on the other cylider every time...but its very accurate.