Is there an adjustment

on the clutch pack? Did searches only turned up cable adjustment, owners manual same thing. 2013 wr

Yes, and it is the same principle as most Yamaha dirt bikes.
It's in chapter 5 of the Yamaha Service Manual.
Why?

Getting the most out of a clutch means keeping it adjusted correctly, I'll see if I can find it online

I only have 200 miles on my WRR so I have not personally done this. I just read the procedure in the shop manual. Apparently there is a lever arm, I'm guessing at the end of the clutch cable, that has a "pointer" on it that needs to align with a line on it's bracket. Looks like you push up on the arm till it stops and the two should be aligned. If it is not aligned you have to adjust the clutch push rod adjustment screw found in the middle of the clutch pressure plate. I'm not sure if there is an access screw or if you have to remove the clutch cover. Clutch lever free play is in the owners manual. I hope that helps.

if you've reassembled your clutch after service, you may have to adjust the push rod....the pointer and line at the cable holder must line up with slight pressure..you can adjust that with the set screw and lock nut in the center of the clutch itself...most of my clutch adjustments are made with the bike on the side stand with minimal oil loss...clutch cable free play, that's another thing..