1. No, haven't touched the ingintion system.
2. The carby has a black vane (It's a G3 carby).
3. By oil seals do you mean the piston rings? Then yes I replaced them, otherwise no didn't spot any other seals on the engine when it was apart. Are there more seals inside the crank case? I didn't pull that apart.
Another thing I forgot to mention is that it was blowing a lot of smoke before I worked on it. Which made me suspect the rings were buggered. It doesn't seem to blow any smoke now, or at least only a minimal amount. Don't know whether this is relevant or not?
Thanks.
