Here is a vey helpful item for your DT400! Great if you are working on, restoring, riding or racing a Yamaha DT400 from 1977 1978.This is the Carb Rebuild/ Repair Kit. Get your bike up and running top-notch again! Top quality aftermarket item. Item will ship sealed in the package, We just opened up an extra to take the photo.  This set includes all items seen in photo. Float bowl gasket, needle, clip, main jet, air mixture screw and "O" rings, float seat and needle and gasket..and much more. We look forward to doing business with you!  That is it!