I Just bought it and it looks like a new atv. I don’t know the history of it so all I can tell you is my experience with it. It cranks right up but wouldn’t rev up. After trying several things including adjusting the valves. I felt like it was starving for air so I pulled the air filter off and it started to slightly rev up. So then I removed the small offset plastic pipe going from the carb to the airbox and it almost runs like it is supposed to. You can actually see mist of gas spitting back out of carb when I rev it up. Its not back firing thru carb or exhaust. THIS IS DRIVING ME CRAZY I KNOW I SHOULDN’T RUN IT WITHOUT AN AIR FILTER BUT THATS THE ONLY WAY I CAN RIDE IT. THANX FOR ANY HELP ?????????

I Just bought it and it looks like a new atv. I don’t know the history of it so all I can tell you is my experience with it. It cranks right up but wouldn’t rev up. After trying several things including adjusting the valves. I felt like it was starving for air so I pulled the air filter off and it started to slightly rev up. So then I removed the small offset plastic pipe going from the carb to the airbox and it almost runs like it is supposed to. You can actually see mist of gas spitting back out of carb when I rev it up. Its not back firing thru carb or exhaust. THIS IS DRIVING ME CRAZY I KNOW I SHOULDN’T RUN IT WITHOUT AN AIR FILTER BUT THATS THE ONLY WAY I CAN RIDE IT. THANX FOR ANY HELP ?????????