the pump is already in the carb, you just need the shaft and boot the make it work.

 

I talked with Gre Row (member of the Baja Championship team abord a DS) and one of the first questions I asked him, was what was done to that DS he raced. I thought he was going to say something like a stage 3 kit, but he said the ONLY motor modification he had was a pipe and silencer. He had the gearing to 17:37 I beleive, and 22 inch tires on the rear with 23's on front. He also had a bigger gas tank, and different front shocks. I work at the local bomb. dealership and we recently put a stage one kit on one of our quads, and it doesn't kick like we thought it would. Don't get me wrong, this quad is incredible, but we were expecting it to lift in 5th. We are going to throw bigger tires on rear and see how that does.

 

Smaller tires will make it lift the front better.