Ill share a tip that was shared with me a long time ago when it come to bleeding brakes or a clutch system. If you have one good if not buy yourself one of the little oil can with a pumper on it from a parts store and get a small piece of hose to attach to the can. The hose needs to be small enough to fit the bleeder. Fill the can with brake fluid and hand pump the fluid in from reverse direction. When done the system will be air free as you are pushing the air out by filling from the bottom. Hope this helps.