Hi i have a 2004 yamaha warrior 350 just did carb clean changed spark plug and did oil change but it is having a problem where when i drive it in high rev its like it goes into neutral for a sec cause i can here the power go wooooom and then i let go of acceleration and it will still be in gear and then if i rev high it does it again like its in neutral so at low rec its not doing it only at high rev and worse on higher gears i have no idea what it can be

 

I would guess at clutch slip. Try adjusting and if that doesn't work, check clutch plates for wear and glazing.

 

Thank you will check that out today and keep you updated