hi there ive got a 50cc qingqi atv thats not running i can get it started but it imediatley cuts out. can someone help me please thanks

 

does it idle or does it bog down when giving it throttle or does it fire up and shuts down? if it fires up and shuts down, are you giving it throttle to fire up while cranking? need some more details.

 

im having to spray wd40 up the air filter to get it to start then it just cuts out it doesnt idle atall. its just an automatic.

 

ok, it sounds like you have a fuel delivery problem. many videos on youtube covers the process of cleaning the carb/jets. in this video, your carb may not be identical to it, but the principle is the same. just don't use a drill for working over the screws. the jets must be removed and physically cleaned. you must see daylight through them. that is what feeds gasoline to the cylinder. let's start with cleaning the carb/jets.

 

thanks verry much mate ill get on to doing that just now and ill get back to you to let you know how i get on.thanks again for being so helpfull

 

just pay special attention to how it comes apart, the different parts that are inside, and their orientation. don't lose any parts, you'll be screwed. if you have to take notes or pics during disassembly, do it. that way you'll put it back together the correct way. things like the orientation of the slide, float, needle valve/seat, etc.....

 

cause if you put the slide back in and it's wrong, being 180° off, when the quad starts, it'll rev up high and you could blow the engine. so pay attention to the **** on the inside and the grooves on the slide. it'll be self explanatory once you see it.

 

how you doing mate i cleaned it all out the smaller jet was all blocked up.and it started first time and run for about 100 yards then cut out on me.its not staying on by itself either any ideas?

 

ok, when riding that 100 yds, did it slow down and die or just cut off? i'm wondering if the float is sticking and not keeping up with the fuel demand and maintaining a level in the float bowl. give us some detailed info on how it ran, revved up, and how it died. OR, is it dying and not idling when sitting still or letting off of the throttle?

 

it slowed down then died then when i tried to kick start it.it was kicking through but not starting.