breather system

I've seen instructions on the proper way to eliminate the fuel tank breather 
system in the past but can't find any now.  Can anyone guide me?  (75, 1500).

Thanks!

Mark M.

PS don't want to jinx anything but I think I'm getting pretty close!

PPS clutch story:  If you're having a terrible time bleeding your hydraulic 
clutch it might be worth going through the trouble of removing the master from 
the pedal box.  Once I set it level all the air came out. (using a pressure 
bleeder from the bottom)