Vacuum Hose Sizes?

[Space City Motovlogs]

I did some searching on here and wasn't able to come up with much. Can you guys tell me the ID of the vacuum hoses at and around the TB's? Are they different sizes? I'm thinking 3 & 4mm ID but I'm not sure.
Gen 1 Hayabusa

 

[Space City Motovlogs]

Answer: 4mm (5/32 in)