When carrying out carburettor refurbishment it is always easier to use brand new parts, new screws with fresh threads for example, new springs to hold the tune, and of course a clean and shiny appearance that new parts bring, helping the visual appeal as well as ease of assembly.
Other carburettor related components, listed below, will help both the mechanical function and the cosmetic appearance:
Add as many components as you wish to the same shopping cart, new screws 985010501698507040129850704014 & O-ring seals 3541414700 for example, and still only pay the same single fixed price shipping cost.
This component may have other applications and uses within the Yamaha model range.