Dean Sokoll

Sorry, I do not.

Pull your speed limiter and see if it runs better. It’s next to the battery, the box says speed limiter on it. Unplug and take it for a spin. I changed a bunch of stuff on mine until I tried that. I believe it limits the speed in which the machine backs up. 

I have a 2019 Hisun axis 500. About two weeks ago it started sputtering when you accelerate. I bought it used in January. I started looking on forums and started on a journey to figure it out. 
the machine has 300 miles on it.

I looked at the driver seat belt safety switch. Then I changed the fuel injector because people were saying they were going bad after about 250 miles. It still had the original gas filter, so I changed that. No difference! Then I changed the air filter because it was pretty dirty. Today I changed the plug. Same problem.. I looked under the hood and seen the speed limiter. I unhooked it and that appears to be the problem. It runs smooth and accelerates nicely. I don’t go off road with it, I bought it to plow my property and take rides through the neighborhood behind us with my grandkids. I think I’m just gonna leave it unplugged. I do feel that all the other things I did were necessary anyway. 
hope this helps somebody