I just purchased a 2001 Scrammy 2x4 with an LRD pipe. From 0 to 2000 feet this thing is fierce, it pulls wheelies no problem. I went riding today at about 2800 to 3200 feet and it was bogging down. It has a 220 main jet in it now, I'm looking for any advice about where to go from here, down a size or if someone knows anything about the jetting for these pipes that would be great. Thanks in advance for the help.

 

K&N filter?

Make sure you got a high flow filter yo go along with it. Easiest fix, anyways.

 

Yes sir, it has the direct intake K&N set-up so the air box has been eliminated.