guess the main jet size?

[Barry Donovan]

Hint: a qtip fits sloppy. the qtip is exactly 2.5mm



as the monojet carb is as old as hieroglyphics...the native tribe that wrote this and went extinct left modern day civilization hanging to decipher.

The only real deciphering I got was that a 102 jet fits a qtip snug. so...this is bigger than 102.