My 2-stroke sounds different from others I have heard?

Question

It sounds deeper i guess and not as loud. It's a 05 YZ125. I have an 85 and that sounds much more like the other 2-trokes i have heard (X games, etc.) The owner before me on the 125 did a lot of other stuff to the engine, pipes, and other stuff too. So what do you think is the reason?

Answer 1

I would say they need to do some repacking.  

Answer 2

just has a better packing.

Answer 3

your silencer has been packed better. thats it.....

Answer 4

the sound changes because the fmf shoty