This demonstration guide answers one field question about overtightened nuts that warp the carburetor body. Measurements come before parts, and the notes are not a generic equipment FAQ.
Diagnose before replacing parts
Start with flange flatness on a plate. That reading separates overtightened nuts that warp the carburetor body from adjacent faults that share the same complaint.
If the measurement is out of spec, treat the flange and gasket as the primary path. If it is in spec, do not replace the flange and gasket just to complete a parts list.
Repair the failed system
The usual correction is the flange and gasket, installed to the documented spec for this complaint.
A demonstration shop records the finding so the next technician is not repeating a guess about overtightened nuts that warp the carburetor body.
Stop before you make it worse
Do not adding a second gasket to "seal the warp". That shortcut hides the original measurement and creates a second failure.
If the machine still fails after the flange and gasket is corrected, convert the visit to a broader diagnosis rather than stacking parts.
Written and published by Ridgeline Small Engine.