2012 suzuki ozark, cleaned carb twice, occasionally still stalls. I take the fuel line that goes into petcock from tank, blow into tank and runs fine for a while. Then starts stalling again. what's the problem here?

The other line goes to the fuel gauge overflow right next to the petcock vacuum line on the tank. Big nipple on petcock goes to fuel line leading between carb 2 and 3. Small nipple on petcock goes to the brass nipple on the front of carb number 2. The other hose hooks up to the nipple coming from the fuel sending unit and routes down below the battery and ends. It's there in case the fuel sending unit leaks the hose will route the gasoline away from a hot engine instead of pouring out right on top of it. The nipple to the fuel sending unit should be positioned pointing directly at the petcock on the bottom of the tank. In case you don't know what I mean by sending unit it's the big round circle on the left side of the bottom of the tank with 2 wires coming from it.

did you mop out the tank , fuel lines and fuel pump etc as water is bad news in a 2stroke ? when in water run engine and set the tickover ON THE CARB throttle stop ! see if it goes in and out nicely just above stalling , you might have to clean the carb again if water in tank !??

Hey Bayside,,
Sounds like the carburetor needs the attention of a qualified professional..install a new (correct) spark plug,,
Have the pro clean, check, and set the carburetor, you should be ok,,

there is a small port on top of the second carb on the right, that goes to the small port on the fuel petcock mounted to the tank. The main fuel supply (larger port on tank) goes to the bottom fuel supply rail with the only carb port on that rail. The upper two ports between #1 & #2 carb and between #3 & #4 carbs are vents and those hoses get plumbed down under the air cleaner, careful not to pinch the vent hoses or the bowls will not fill up with gas. This is the same for an automatic petcock or a manual one.

2 lines are vent lines, make sure they are unpluged , and clear. the other is the fuel line that runs to the petcock, and one from the petcock to the front of the carb near center of motor, this is a vaccuum line witch allows the petcock to open , and let fuel flow in the off position from tank to carb. hope this helps

On the one that has two hoses does it still have an "Off" position? Usually petcocks that have two hoses, one goes to the carb vacuum, and the other is for a fuel supply for the engine. That way it only allows fuel to flow when the engine is running. I have found these to be a poor design and can often leak and allow fuel to run into the engine if your carbs are acting up. If the replacement only has one hose, then it will work fine, just be sure to cap off the vacuum port on the carb.

sounds like the float is not working properly , could also be the jet. would be a good idea to buy a carb kit, not very expensive and save a lot of grief.

Sounds like trash in the gas supply is holding the float needle open causing the float bowl to overfill. Remove the petcock from the tank and clean out the water trap bowl (some petcocks don't have a bowl). Drain some gas from the tank through the petcock hole to help clean trash out of the tank. Install an inline fuel filter
between the carb an the gas tank.

Now clean the carb one more time using an air hose to blow trash out of the float seat and then blow out the fuel line as well. Be certain the float level is set at the proper height. This should solve the problem for you.

Please rate this solution as a "FixYa" if this solves the problem. Thanks!