The master cylinder is a 5 minute rebuild and the kit costs around $18..
Carquest Clutch Master Kit M7386
Just remove the clutch res/bracket and master cylinder.
Unscrew the single slot head screw on the bottom in the middle of it length wise. Pull the o ring off the screw and throw it away..
Pull the end boot then the circlip and it will pull apart. Throwout the clip because there is a new one...
Keep the outer body (obvious), pushrod assembly (threaded) and the small screw.
The aluminum piston will get tossed...
Clean the old parts very well.. then lightly lube the new piston with brake fluid and gently install it.. Put the new o-ring on the screw and install it.. Then put a drop of grease (I used anti sieze because it stays put) on the ball end of the push rod.. Install the new clip then the new boot..
From there follow RRE's clutch adjustment page..
http://www.roadraceengineering.com/c...ywheeltech.htm