Do you have an old fashioned 'choke' knob inside the cabin, that you need to pull out for cold starting?
Also, the carb. will have a big Weber 'W' cast into it.
If a Weber is fitted, then the spare plugs, etc. are the various connections to the over complicated electrically controlled original carb. A brilliant design when it was new, but you don't want a 25 year old one!
so it's the first 2 pics on my original post i would like sorted i.e the pipe that i found in the engine bay and the second pic sould that pipe go to that and where does it end up?