Create progress file for current carb settings documentation

OverheatStalling/progress.md

@@ -0,0 +1,48 @@
+# Current Carburetor Settings - Husqvarna 450 Rancher
+
+> **See main issue:** [OverheatStalling README](./README.md)
+
+---
+
+## 📏 Current Carburetor Settings
+
+**All measurements from fully seated (lightly tightened, not forced)**
+
+| Screw | Position | Direction |
+|-------|----------|-----------|
+| **T (Throttle)** | TBD | Waiting for measurement |
+| **L (Low Speed)** | TBD | Waiting for measurement |
+| **H (High Speed)** | TBD | Waiting for measurement |
+
+---
+
+## 📊 Factory Default Settings (For Reference)
+
+| Screw | Factory Default |
+|-------|-----------------|
+| **L** | 1½ turns out |
+| **H** | 1½ turns out |
+| **T** | Adjust for smooth idle, chain should NOT rotate |
+
+---
+
+## 📝 Notes
+
+- Settings to be documented by John
+- Compare to factory defaults once measurements complete
+- Likely similar rich-when-hot issue as 440 based on symptoms
+
+---
+
+## 📅 Revision History
+
+| Date | Change |
+|------|--------|
+| 2026-03-23 12:59 PM | Progress file created - awaiting measurements |
+
+---
+
+## 🔗 Related
+
+- [OverheatStalling README](./README.md) - Issue documentation
+- [Main Project README](../README.md) - Overall chainsaw info