I have a TaoTao ATA 110 ATV: Child's ATV.

I had replaced the starter and carburetor just a a few days ago.

When I had tried to start it, it doesnt start.

It's a lot better then before because before it barely even cranked.

I had noticed that gas was leaking from the carburetor, I removed the little air filter and gass began to leak out.

I suspected that it is being fed too much gas and the engine is flooding?

When I cut off the gas and try to turn it over, it starts but only briefly until

whatever gas was remaining burns out.

what is the problem and how can I fix it?

 

{Bump} Help me please!

 

Gas is gravity fed into the carburetor on your quad. There is a chamber inside the carburetor that fills with gas and raises a float. This float pushes on a needle valve which shuts off the gas (at least it is supposed to...) when it gets to the proper level. This whole scheme is very similar to a generic flush toilet where a float inside the toilet tank raises with the water level and shuts off the incoming water supply when the tank is full.

Obviously your float driven needle valve inside the carburetor is leaking. When the internal chamber in the carburetor over fills it comes out the overflow port (usually through a hose). Sometimes it also comes out the air cleaner, and much worse, flows into the engine combustion chamber, past the rings and into the oil. Be sure to check your engine oil for gas contamination. Smell the dipstick... No big deal if is is contaminated - just change the oil - but don't try to run the quad with gas diluted oil. In extreme cases the crankcase can be completely filled with gas. Be prepared for a projectile vomit like scenario when you remove the dip stick. Also the cylinder may be filled with gas. You may need to remove the spark plug and allow the gas to be purged as you turn the engine. Hold a rag over the spark plug hole so gas doesn't squirt across the garage.

The needle valve in the carburetor can be lodged open because of crud passing down the fuel line and getting caught in the valve as it tries to close. Do you have a fuel filter in line with your fuel feed hose from gas tank? If you don't you should definately add one. If you don't you could free up the valve only to have it happen again when the next piece of crud migrates down the fuel delivery hose.

You should also have a fuel shut off (petcock) valve. If you don't then add one. And be religious about shutting it off when you store the quad. Imagine a slow fuel leak that starts to spill out onto your garage floor in the middle of the night right next to your furnace while you're asleep.

Since your carburetor is new you might be having some problems with the needle valve. I'd take it apart for a look see. But if you've never done this before I would search YouTube for atv carburetor cleaning videos. There are *tons* of them available. You might even a find specific one for your quad. Even if you don't the same general principles apply to all 4 stroke small engine carburetors.

 

Great reply!
And I thought you were just a electric guy.

 

Thanks, Jack. I *am* just an electrical guy. That stuff comes easy to me. But it is hard to hang around here without learning a few things...

 

Lynn has it right. I know that many new carbs come with a gel in the bowls to keep the floats from bouncing around during shipment. When you start it, it's recommended to let it run/idle for about 30 minutes to allow the fuel to dissolve that gel. If not, the gel could break into chunks and get into the jets/needle holes and clog them up...........sounds like that may be what happened to you.

Open 'er up and clean everything out as Lynn said and you should be on your way. (I just recently had the same problem with my Yamoto 250 with a twin carb........fuel coming from all 3 drain/overflow lines when it was running. I think it just sat up too long (over 6 months while I was deployed). The carb was junk when I opened it up to clean it and just ended up buying a new one.....problem solved for me there.

Good Luck

 

I have the same problem but its a150cc do I do the same or take it to the shop

 

Try cleaning the carb if you haven't already.

 

What LT80 said X2 .

Also, make sure you have a fuel filter between the gas tank and the carburetor. If you don't add one.