thanks for the advice. With my Victa throttle at 1/2 way, here's a picture of my carby.
[Linked Image]

I'm thinking that the long pin needs to be inserted a bit further in so the top 1/4 of this pin is fully upon the 'ramp' of the cam (when throttle fully off)? This ramp can be seen just above the pin in the photo.
- A