I joined this site recently again as I had been registered from the beginning as "98Vmax", it's been a while. I couldn't log back in for some reason. I have had to copy the round key once before years ago and the blank cost $60 and the dealers won't cut them as they are afraid if it fails, they will be on the hook for the expensive key blank. I then paid a locksmith another $40 to cut the key. This last time, I had Yamaha cut a key from the flat tear drop shaped second original key using an ILCO blank they had at the shop which only cost $14, probably less if you buy the blank online and take it to a hardware store. I then carefully dismantled the round key by bypassing (pushing in) the two small roll pins, removing the key with an attached plastic inner collar of sorts. I then carefully removed a copper colored rivet and separated the metal key from the collar. I used the metal key as a template and marked the new metal Ilco key. I then cut/formed the new key identically to the old one. I used a punch, a drill, hammer, bench grinder, and a dremel tool to remove the old key and shape the new
View attachment 78762View attachment 78763View attachment 78764View attachment 78765View attachment 78766 key. I reused the copper colored rivet and reattached the newly shaped metal key to the inner collar reusing the copper colored rivet and then reassembled the key with the inner collar into the round key head using two new roll pins. Worked and looks perfect. I have more pictures if anyone needs them.