LT125cc SUZUKI four wheeler you give the gas it dies out But i need to know how the vacuum lines run do you have a die gram

Odds are your carb needs to be taken apart, cleaned, reassembled and adjusted if needed.

You need to inspect all gas lines for obstructions including the gas tank , and especially the carb. I can bet dollars to doughnuts that it's a fuel problem something is blocking the fuel and by rocking it it's allowing the fuel to go through. hope this helps , let me know how you make out .
Adam J

when engines not running turn the gas off . And it sounds like you need to adjust your throttle pin that goes into the carb take the clip off the pin and move it down one good luck

clogged fuel flow. check the tank filter, petcock, lines and then the carb bowl float.

Mine did the same thing. I took the air filter off and there was about a half inch of gas sitting in the bottom, so I just soked that up started the wheeler and covered the air hole w my hand and hit the gas. After that it started working. It died when I did that and then it started right up.

check to see if the choke is stuck or the carb could be dirty (gummed up)

I'm pretty sure there's no vacuum lines on it. clean your carb

first thing i would look at is carb balance,these bikes are quite critical on balance,if the carbs are not balanced correctly it will do exactly as you describe,get hold of a set of vacuum gauges or take it to a good bike shop,they will have them,it is not expensive to get them done,but it will be if you dont,it is quite possible you will lean out one or two cylinders and melt a piston or something more sinister

id start by getting a set of feeler gages and set the tappets up and try that , also check compession