Bad news here ...

I cleaned out the carby, no change. Not sure why but nothing. I know fuel is getting into the bowl but it's just not getting through the carby. I couldn't find a blockage anywhere.
Sprayed some start ya bastard into the carby, pulled the cord, cord snapped, carby caught fire and now it seems to have no compression. I blew out the fire. It didn't cause any damage.
I'll look at it again later on when I can be bothered replacing the cord.
Going to take a break from it for a little while.
Gadge; based on the description of the air filter I think I may actually have the correct filter. I'll post a photo of it when I get around to it.
Pete