I just recently bought a yamaha warrior 350 and it rode perfectly fine for the first few hours and then it would only rev half way out it runs fine and idles perfectly it just seems like it's hitting a rev limiter at half throttle I've already tried disconnecting the parking brake sensor but that didnt work so I have no idea where to go from here

 

It could be trash stopping up the main jet. May need to clean the carb, especially the jets.

 

That worked thanks