Clutch won't disengage.

Have a ~ new wr250 with maybe 100 miles on it.
The clutch doesn't completely disengage when I pull the lever in. The yamaha service manual is pretty lean on details, it just says 'loosen the locknuts and adjust the slack'.

I tried adjusting for tons of slack, and for little slack, but still can't get it to pull free.
Is it possible that part of the clutch wasn't setup or adjusted properly at dealer assembly, or should I definitely be able to fix this with a cable adjustment?

Thx,

Hi all, thanks for the replies,
Everything looks good, no cable routing issues, nothing was loose/bent/broken (really still a new bike with only ~ 100 miles on it) and the freeplay is right in spec.

There doesn't seem to be a sweet spot in between dragging and slipping. If I loosen the locknuts so there's more slack in the cable, the clutch won't engage - can't get it into gear. If I tighten the nuts up, the clutch drags. Can't find a middle ground, it's one or the other.

The bike is still rideable, just worried about long-term wear if the clutch isn't in spec, and these are annoying:
- bike jumps slightly when I pop it into gear
- bike wants to keep moving when I stop in gear, have to keep the brake on or go into N.
- can't roll start (I guess I could by putting it in N, then moving into gear and popping the clutch)

I called up a local yamaha dealer, guy said he's heard of this with wr250s, but he was more of a street dealer, not much exp with dirtbikes. Beyond my skills to tell if the clutch innards need adjusting, might bring her into a more knowledgeable shop tomorrow.
Will post results for the benefit of anyone searching for clutch-disengaging problems. I searched and found a ton of threads, but no resolutions.