whats wrong with my 450?

[Z400Racer8]

heres the story me and a friend went to a local riding spot and it was kind of wet there but i didnt get my filter wet or anything like that we did some riding it was running fine then we took a break when we started riding again my quad had a huge power loss then all of a sudden it died when i started it it only idles and it well rev to about half throttle then it cuts out and pops I just figured I fouled a plug so when I got home I changed it but that wasnt it because it continued to do the same thing. someone please give me some anwsers here

[beak7707]

Might have some dirt in the main jet, not allowing it to rev over idle. I'm not sure other than that, I would check out the carb.

[Z400Racer8]

thanks ill look into that

[culookn]

mine was doing the same thing for the longest time. what was wrong with mine was the piece that the main jet screws into vibrated loose and was allowing to much fuel to go into the bowl of the carb. as soon as i tightened it up it ran awesome. i know of 2 other people this happened to.