Do your search under OEM parts for a 2007 Thruxton, then sub classification fuel and air, then pick carburetor parts, IIRC. BikeBandit Don't forget, you need to order two. Same procedure for TBS needles or even the lighter diaphragm springs Dave suggested. As you can see BikeBandit s exploded views can be a good resource, even if all you do is take advantage of the exploded views available and never buy a single thing from them..