Several schools of thought on that. My preferred method is to carefully clean the opening then insert the O-ring into the water pump housing pushing it square against the inner edge of the opening. Disconnect the radiator end of the water pipe to make it easier to push in squarely, apply a bit of brake grease to the end of the water pipe and push into place. Works for me.
- Rebuild calipers and put some new pas on the cbr 954rr front end. I wrapped the exhaust as well. Putting new copper exhaust gaskets I broke one of the exhaust stud, ordered a new one :/
-I had bought a deluxe tank from a member a year ago, was not in very good shape. I used the KBS cleaner tank products, that stuffs is great and did some job to undent the tank.
Pictures below is after primer, I used an epoxy non sandable primer and a polyester lacquer that will even all the imperfections out and be used as a sandable primer.
I still have to do the color, super jet black, and finish lacquer.