This demonstration guide answers one field question about rotted AV mounts that pass vibration into the handles. Measurements come before parts, and the notes are not a generic equipment FAQ.
Diagnose before replacing parts
Start with mount crack inspection and handle play. That reading separates rotted AV mounts that pass vibration into the handles from adjacent faults that share the same complaint.
If the measurement is out of spec, treat the AV mounts as the primary path. If it is in spec, do not replace the AV mounts just to complete a parts list.
Repair the failed system
The usual correction is the AV mounts, installed to the documented spec for this complaint.
A demonstration shop records the finding so the next technician is not repeating a guess about rotted AV mounts that pass vibration into the handles.
Stop before you make it worse
Do not wrapping handles in extra tape instead of replacing mounts. That shortcut hides the original measurement and creates a second failure.
If the machine still fails after the AV mounts is corrected, convert the visit to a broader diagnosis rather than stacking parts.
Written and published by Ridgeline Small Engine.