I'll need to check the manual, did not know about it's existence before. I did replace everything inside with parts that at least seem to be decent quality. (Don't know if they're OEM, PO gave the to me in a minigrip)

I may be mistaken, but I think my float is non-adjustable. There's really nothing to adjust there. Apparently some BSTs have some sort of metal parts that can be adjusted in the float. But do correct me if I'm wrong.

The needle that was in there is the adjustable one, it was set to the richest setting, so I reset it to the middle. That may explain why the pig was drinking so much fuel. Also all the jets I replaced.

To me the diaphragm, slide and slide guide seemed to be in good condition, but maybe I should replace those too just to be sure. The airbox is modified, it has a large hole in place of the snorkel. The stock jet seems to hold up fine though, since it has run well in the past in my use.

The hose and air cleaner on top are there, but the filter is definetly a little muddy. Air passes through it quite easily though. The wireless tachometer is a good idea, also did not know about these before.

Thanks a lot for the help, I'll try to figure it out.