I found that eventually its better to solve one problem at a time, I did the Homemade manometer, and when I got the bike running, I went right into balancing. Dont put on the airfilters on till your sure that the gas isn't running out into the the airbox side. some where was a blog that showed how to check for float checks, Check the float in a bowl of water. or pail. then there is a off bike check where you plug the tank into the carb, then with the (if your bike has it) connected to the bottom of the fuel bowl a clear tube. that is long enough to be caught by the sparkplug wire, (if it were on the bike), then the basic premise is that the fuel height is limited by the float, so run fuel out the tube into a clean can/soda can/beer ... then pending your bike specifics, the fuel level should always be right at the seam of the fuel bowl, to the bottom of the carb. (look for pics in my profile) Then run more fuel a few more times. (I am only suggesting ounces, not gallons) note that my hole in the float didn't become evident till the next day after it had a chance to fill up of fuel. First day it was functional, then It started to flood on the second day. Then I do the same check once its on the bike. Then cause I am afraid that their may still be a air leak in the Carb boot, I have wrapped mine in a that miracle tape (vinyl tape, good to 500 degrees, available at menards here for under 4 bucks, Look up "tommy tape" on the web to see what I am suggesting, Menards has a generic version. of that. (Sorry about that, I am tired and I am rambling) Good luck.