Nexus 7 speed will not go into 6. and 7. gear Hope someone can help 
I have an elder Nexus 7 speed internal gear, which will not shift to 6. and 7. gear but go backwards. Instead of getting the 6. and 7. gear, I get 4. or 3. gear. The clickshifter is new and the cable runs smooth in the sleeve, and the gear is well adjusted acc. to the manual. I have had the gear out of the hub and it is well oiled and greased, and I've found no sticking parts or that kind at all. So it is really mysterious! Has someone amongst you experienced the same peculiarity and can you tell how to cure this?
Best regards
Tom
have you checked that your shifter cables is in any way rusted or damaged? I had the same problem and i just got a new cable which fixed it quite nicely