2013 Hisun HS400 transmission grinds and will not stay engaged

[Rarule]

2013 Hisun HS400 transmission grinds and will not stay engaged to reverse, linkage was adjusted and have to hold it to try to engage, any suggestions would be appreciated thanks

any help would be appreciated 

Edited August 5, 2022 by Alex
Shortened topic title and added to topic content

[aefron88]

Have you seen the service buletin ut400 shifter adjustment?

assuming you're running the proper wet clutch approved oil..

What RPM is your unit idling at when you try to shift.

If all of the above are good some people have modified the back side of the shifter pawl to give the cable more movement.