After 20,000 miles of amazing riding in every situation imaginable, I was starting to get some clutch slippage. It's time for some replacement clutch plates. This is a very simple procedure, but if you aren't comfortable digging this far in the engine, it might be wise to enlist some help.
The fist step is to get organized. Gather all relevant information and get parts ordered. I used OEM Yamaha replacement parts. You'll need 7 friction plates, 6 clutch plates, and a new clutch cover gasket.
Drain the oil.
Now we have to get the brake lever out of the way. There is a retainer clip on the backside of the bolt that needs to be removed first. Then, you'll need a 6mm allen wrench to remove the bolt. Unhook the return spring and let the brake lever hang out of the way.
Here are all of the parts that were removed.
Once the brake lever is out of the way, you can remove the plastic cover. You'll need an 8mm socket to remove the three bolts here.
You'll be left with this.
Now we can remove the actual clutch cover. There are 6 bolts and again you'll need an 8mm wrench for these. I set everything in place on a paper towel to keep things organized. This makes reassembly much easier.
Once you can see the actual clutch, there are five 10mm bolts to come out. The springs won't come flying off or anything, so don't worry.
The five bolts partially removed.
The cover slides right off giving you access to the clutch plates we're after.
More organized parts.
The clutch plates themselves will slide right out.
Burnt clutch plates.
Here are all of my new parts. I ordered new springs as well since I was going to be in here anyway so everything will be nice and fresh.
Old burnt disc vs new disc.
This is a test fit to make sure everything lines up where it is supposed to. Friction plate, disc, friction plate, etc.
SOAK ALL FRICTION PLATES AND DISCS IN OIL PRIOR TO FINAL ASSEMBLY!
Once completely saturated with fresh, clean oil, stack everything in place and re-install the clutch cover. The five bolts here are tightened to 5.8 ft/lbs or 70 in/lbs. Don't confuse those two numbers, haha. A 1/4" torque wrench is usually adjusted in in/lbs, so I set mine to 70 and tightened the bolts in a star pattern the same way you do lug nuts.
Now it is just a matter of reinstalling the clutch cover and the plastic protective cover. These bolts are torqued to 7.2 ft/lbs or 86 in/lbs.
Reinstall the rear brake lever.
Pour in some fresh, clean oil and you're done! The whole process will take less than 30 minutes even if you're taking your time.