Taotao won't stay running

did you adjust the valves? check and make sure the fuel pump is putting out enough fuel, way past time to replace it. check your voltage too, the regulators in those are famous for dieing.

Remove the play in the throttle by loosening the locking pin on the cable, then pull the cable tight to remove the play and refix the locking nut. Once the play is removed adjust the jet so that its steady at idle.

If you are lucky, you might just need new fuel filter and the fuel bowl cleaned out, and maybe new air filter. If not so lucky you need carburetor rebuilt. Backfire is usaully caused by engine running too lean ( too much air for the amount of fuel present). Fuel bowls get gunk in them and the fuel needles and fuel jets get varnished up. The accelerator pump gets worn out gaskets and/or bellows and doesn't give the right amount of fuel mist when you accelerate.

Full Choke is indicative of a motor starved for fuel

it is a problem with either or both the fuel mixture coming out of the carby or poor quality fuel. use premium 95 octane to help it and you might need to adjust the screws on the carby to generate a better fuel air mix

Could be a clogged fuel filter, or clogged air filter, or trash could've gotten into the carb. Starting with fuel filter 1st and make sure you getting good gas flow to the carb. Does it have a petcock for the gas on/off? Is it operating properly?

try cleaning carb and running ethanol free fuel with injector/carb cleaner in it

spark @ plug ? gas to eng ? compression in eng? will run if you have all these. adjusted properly !!! what do you have or dont have ?

Repost under ATV for an answer

Hey Josh,
Cleaning a carb is a little more that most people realize..it takes someone with knowledge and training to really do one right... take it to a professional..

By straight work g fan is not a repair. The fan running constant will cause it to fail prematurely. You should replaced faulted electrical component.