I have a new 2006 xr650l, and on Monday I completed the de-snorkle mod and the de-smog mod with the IMS covers. I also added a brand new UNI filter to the bike. I then changed the oil and oil filter, clean the oil filter screen, and then I have not run the bike since I did the mods, nor did I test drive it after the mods. So today was my first chance to ride it. Anyway, it was really hard to start today around 12 noon, and it is nice and sunny out and about 70 degrees. I had to use full choke, and it finally started, but once I tried to hit the throttle, the bike keeps stumbling and trying to shut off. So what did I do to the bike with these simple mods as described above? I have a big ride tomorrow and I need the bike running. Please let me know ASAP. Thanks.