Have you done some testing on a paved road. My son thought his clutch was bad and when he road on a paved road everything was fine.
The DS can roost the tires easily between 1st and 2nd gear when on loose dirt or sand.

 

Steve,

Did it SNAP SNAP SNAP????? 2nd gear has more torque on the chain, therefore pulling it in. So I ask you kindly again, did it SNAP SNAP SNAP?????????

Also, look for minor wear on your rear sprocket. The teeth tips will be slightly bent over.

Marky

 

There is no Snap, and I have rode the ds on the road and the same thing happens. It still has that jerking feeling and the teeth on the sprockets are fine. I think I am going to have to dish out that 800 bucks.