I have a linhai 400se
When i plow snow in low it has lots of power
But when i go to reverse it sucks real bad,and lots of time it wont back out of the snow,it doesnt spin tires it just sets there,no belt squeal either

 

Sell it better off buying a brand name then investing money into a Chinese quad I had one and i blew the motor the first week I had it

 

Does it rev up and not move, if so it may not be engaging reverse properly. If it doesn't rev in reverse, there must be a rev limiter kicking in (quite common on quads) to prevent you going too fast in reverse, this may be cutting in early, but is part of the ECU or CDI so a new one will cost you.

 

if it has a reverse override switch it may be acting up

 

+1