Deleted your Decompression valve on your 365/372 or 576XP?
Best grab a rubber cap to keep all your air flowing over your cylinder.
Removing the decompression button is great to remove compression leaks but with the positioning on the X-Torq motors this leads to air cooling your cylinder to blow out the hole. Resulting in a slightly higher cylinder temperature.
Keep your saw cool and reduce the risk of dirt and air entering under the cover.