2 nearly identical issues with a 575 and 576 (carbed) I wonder if you could help brainstorm

[czar800]

This L jet thing can be critical on Stihl 024 026 and the ms 200 ms 260 in particular iv found if you ever have to work on them Joe. They can be real hard to dial in a good tune if there a tinny bit lean. Heads up in case.

Well said!