New and very loud generator.
Picked up a new generator and decided to quiet it down.
Brought it back to the shop and gave it a quick try before I decided to mod it.
I had to be careful not to punch holes in the spark arrester. Checked for pinholes using a flashlight with the lights off to make sure the weld was air tight.
I ground the cover plate opening down to fit the adapter and mounted the extension to it with a clamp.
The generator with a small car muffler attached. It significantly cut down on the noise this fella makes.