
15/08/2025
Welp, managed to snap off two of these little tabs this time, changing the retaining o-ring for the needle in the carby slide on my bike, and Hyosung Parts are sold out because the factory stopped producing the part, apparently!
I've asked for the CAD file or if they could even find what happened to the mold, but for now..
3D printing to the rescue!
Probed out the shaft dimensions and modelled a little wedge to sit in place and simulate those tabs, taking as minimal space as possible..
PLA (standard printing plastic) being a no-go for petrol, I did my first attempt with TPU (rubber).
First attempt fits perfectly, holds it a little looser than I'd like, due to being rubber, and it frickin works!! I'll redo these with a finer fit with some Nylon and re-fit em, because it's not perfect but.. two cylinders, baby! Even though I stuffed it up at first.
(New Nylon slimmer fit wedge pictured on the right in last pic)