Just found a pristine DRZ400E. Scooped it up for a good price. Came with FMF exhaust and airbox mod. Flat slide carb was what drew me to it. First issue is the slip on now melts the airbox above it. I have ordered some exhaust wrap and I am hoping this will fix that problem. Has anyone else seen this/ had this issue? Next, looks like the PO did not jet it after installing the FMF exhaust system. Does anyone know which size jet I should order? None of the bike shops around here keep many parts in stock so I am stuck ordering everything. Because of this I do not want to order a jet kit since I only need one jet. The airbox has also been cut according to the airbox mod. Which jet size should I order to install. I also have never worked on the flatslide, only the CV carbs so where would I find a diagram telling me which jets are which. I know how to do it, I am however not all that savy so still need help on small stuff like that. Thanks in advance for any input in advance.