I have an 06 YZ450F. I got into a real bind recently. I broke a main jet off while screwed in. While trying to get it out at the track, I kind of messed the tip of the needle up. I took a fine sand paper and fixed the needle for the day, but want to replace it. I figured I would just get a jet kit. What type do you all suggest? I looked at the FMF, but it looks like it is more for using with the FMF Exhaust. I have the stock exhaust and plan to keep it. Also, while messing with it I messed a part of the hot start up. The black threaded piece that screws into the top of the carberautor. I tilted the carb to far to the side trying to get under it. This knocked the piece out. It stripped one side of the threaded piece. It went back in, but I would like to get a new one. My question is, does anyone make an aluminum one? I would really like to get an aluminum one, instead of plastic.