I have a 00 XR650R, w/ the uncorking stuff installed. It has a 175 main jet, a 68 pilot, and I believe the stock needle in the 2nd clip position, and a uni air filter (the old kind that uses the backfire screen for support). It runs great but when I fall or stall it in corner its a pain to start, takes about 5 minutes. Though I love the power, sometimes I do not want to ride it, I would rather take my 01 cr250 if we are going to get crazy in the dunes. When these bikes came out the mags said they were much easier to start even after a fall than the 600s, my 95 xr 600 seems the same, a pain to start after a fall. Is my carb setup wrong, I have heard of a 68s pilot, is that different than the 68 I have. Do I need another needle? Is the backfire screen reducing performance vrs. the new uni's that have a built in support? Maybe it's just me. Any tips are greatly appreciated.