I need some help. My 2018 u force 800 has 400 miles on it. It has been perfect up till yesterday. I went to drive it across my field and it ran fine for the first minute then out of no where, it started losing power. I had my foot about 20  % throttle, running good, then it started bogging down. Like it wasn't getting gas. I kept my foot at the same pedal position the whole time. After about a minute of bogging down, it would all of sudden throw my neck back as it went back to running normal. 10 seconds later, it would act up again. I could floor it or hold the pedal to the same pedal position as before and it would not want to do anything. Then after 1 minute, it would go back to running normal for 10 seconds. It's like it is getting gas , then someone restricts the fuel supply, then the fuel is returned to normal flow. Its intermittently running normal then won't take throttle. I have kept it in the garage and have maintained it properly. Any help would be much appreciated. I work on cars for a living, and it seems like it would be like an intermittent throttle position sensor. But I have no way to hook up to the computer to look at sensors. No check engine light