so you did open the pump assembly? a gauze? really ?? on an EFI bike?? so you mean that you will face AGAIN the 450 and new 690 duke failing injector(s)? do you have any pictures of the opened up pump assembly? taking down the pump is not the real issue here, the real issue is the 100 plus dollars for the original fuel filter set and the long washing necessary to flush the whole tank. guys, are we really talking AGAIN of cleaning something after being stranded in the middle of nowhere because of a faulty design??? are we really happy with a wrong and inaccessible filter that may even not be able to protect the injectors?? pics of the 450 RFR RALLY KTM, same as the Duke 690.... only a strainer, no main filter, ultra small fuel pump, but at least you can access the bloody thing to service it with 3 screws !!!!