How do I check and what do I look for on the wet clutch?

 

These are for the Grizzly 700 (686cc) but I'm pretty sure the CVT Clutch didn't change by much, if any from the 660 to 700.

Secondary removal and clutch spring install
Secondary Spring Removal/Installation
what size is the secondary spring nut
Primary Removal
Secondary Spring Removal/Installation
Where is my Grizzly's wet clutch?
CVT Detailed & Clutch Mods - Yamaha Grizzly ATV Forum

This is a very good video to watch concerning greasing the Primary and Secondary:

 

You guys are awesome help! I'm a first timer.... lol. I completely unassembled, cleaned, regreased where required, and reassembled the secondary and primary clutches. The primary was full of old nasty grease... So far runs like a champ and is pulling perfectly. If I make it through this weekend with no problems I will be the biggest smiling Grizzly rider around! Thanks again and I'll let you know how it goes!