The clutch master cylinder and the brake fluid reservoir are all connected.
To bleed the brake master cylinder you have to follow these steps.
1. Put the car on the hoist and lift it up so you can easily access the bleeder valve on top of the transmission on the L/F of vehicle.
2. Disconnect the line hooking up to the valve by removing the two clips at the base of the valve.
3. Inspect the inside of the valve make sure that the o-rings inside that female points of the line connecting to them are there. If not, you will either have to order the valve from the dealer, or buy some o-rings from Kragen or any other car part store.
4. While all this is happening, let the brake fluid reservoir drain so that you can start with fresh fluid. (This may take an hour at most to ensure that the fluid empties and can travel through the clutch system efficiently)
5. Assemble the parts back in order so that you can bleed the valve. Top off the brake fluid.
6. (This part requires two people) One in the car to pump the clutch. One underneath the car to bleed the valve with a regular hand wrench.
7. Proceed with bleeding the valve and refilling the brake fluid reservoir until clutch is stiff enough to engage gears.
If you prefer not to do this, take it to the dealer or a trusted mechanic to bleed the system for you. You may need to bleed the brake system after to ensure that both exits on the reservoir and working properly.