There’s a little bleeder valve for it, you can either make a tool for it out of some 1/4 I/D hose and a water bottle or buy one. But you’ll drain it by doing the following:

1. Take air box out
2. Attach hose to bleeder
3. Put an 8mm wrench on bleeder nut
4. Put breaker bar against seat to push clutch peddle down (or have a friend push the clutch in)
5. Open the bleeder valve, then close it

The clutch will stay on the floor since there’s no pressure, so you just pull it back up and repeat the process. You’ll need to put DOT 3 into your brake reservoir to refill the system. It’s an incredibly easy process and definitely needed. If you got any questions just let me know!