You fixed it Peter, I didn't, so there is no occasion for thanks. Your investigation reminds us once again to sort out the bent and broken pieces of our engines before we expect them to run properly. Incidentally I'm not comfortable with that "bit of small hose for a needle seat" - that seat needs to be made out of brass or Viton, not hose, or you probably won't get a season out of it. Do you have a better carburetor body, complete with seat, on your spares engine?
