Been lurking for a couple months while i researched and bought a bike. Bought a 2007 CRF50. I've done a coupel garage mods like adding a UNI filter, BBR handlebar kit, BBR rev box, HD Spring front and rear, and a Tall seat. I do not claim to be mechanically inclined, but i figured this would be a great project to sink my teeth into. In adding the UNI filter, i've run into a couple snags. First i had read that i needed to adjust the needle in the carb, and more than likely wouldn't have to jet by only adding a air filter. Guy at the local honda shop told me to move the clip down on the needle to the bottom position, and I'd be good to go. Tore into the bike, and found out that the 2007 doesn't come with an adjustable needle. Ended up buying a needle kit for a 2005 that is adjustable. I put the new needle in at the specified notch, and put the thing back together. When i fire it up now, it revs super high. When i have it choked down to the first detnet, it seems to idle at a decent rpm, but it doesn't sound like it's running all that smoothly. I've warmed it up with the choke on, turned the choke off, and attempted to adjust the idle screw on the carb to no avail. It still revs super high. I'm at a loss, haven't tried to adjust the needle too far, as the stock 2007 needle seemed to be at the 3rd position on this new adjustable needle. Any ideas?