I posted a message before about this. For the top locknuts, remove the cover that sits over the radiator. Then you can get done to the radiator just fine.
Because I was not thrilled about the fit of the top, I also added a rubber washer and a metal washer so that the fitting could not slip through easily.
Because I was not thrilled about the fit of the top, I also added a rubber washer and a metal washer so that the fitting could not slip through easily.