RE: is my low speed needle broken? evolution 46
Your low end is too rich.
You'll have to loosen the grub screw ( the recessed screw that sticks into the SIDE of the circular blue ring ) and then tighten the inner screw about 1/8 turn PAST where the blue limiter lets it travel now. Don't adjust it more than this.
Once done retighten the grub screw.
You may then have to adjust the high end a few clicks as well.