Echo CS-400 Chain Options

[donbrownzd]

I just swapped out the stock safety chain for 91VXL did the muffler mod and the CS400 really came alive.
As others have said this saw is probably better off with a 16" bar, I will probably do that at some point.

The saw does seem kind of finicky to tune after doing the MM, but its getting close. It seems to have a tendency do bog down at part throttle.

How much of a difference did the muffler mod make ? Practically speaking. My CS-400 has really been tortured from use. I'm truly interested to know how much more power or more rpms it turns with that mod.

Thanks,

Don