Hi everyone,

I was having some issues with my mower revving up and down, received wisdom would indicate possibly dirty carby so I took it upon myself to remove it and give it a clean out. After doing so and putting everything back I've now got two new problems:

1) When I was removing the carby assembly, this part fell out... I think it might be from the carby assembly, but I'm not sure! If I knew what it was called I could have tried an online search but am at a complete loss. [Linked Image]

2) I foolishly didn't pay attention to how the governor/throttle assembly was before I started disassembling. After reassembling the carby this is my arrangement with the throttle cable (at the handle up on the handlebar) @ off:
[Linked Image]

and @ on:
[Linked Image]

For you who are much more knowledgeable than me you will notice that the white triangular part controlling fuel flow into the engine (choke?) is in the same position in both pics, indicating a problem (and it is in the open position?).

So as it is the mower won't start and I'm wondering if it has something to do with the tiny part in my first question, and/or how the governor is sitting in the last pics.

Sorry for the longish post, any suggestions appreciated.