I replaced master cylinder which is connected to the brake pedal. I tried to bleed it but the fluid runs out slow and pedal stays mushy. How should I properly bleed one of these brake systems ? It has a bleed on the caliper on rear of machine

 

Did you pump the pedal up and hold it while opening the bleeder valve and then close the valve before releasing the pedal and pump it up again until it's firm with no mush.

 

yes i did . just like a car. did it many times'

 

its just oozed out slowly.

 

seems the valve isn't opening all the way or is plugged. Take it all the way out and inspect and check the fluid flow with out it in the cylinder.