You can, but not the most environmentally friendly solution, fill the master cylinder with fresh fluid and open all 4 bleeders. Monitor the fluid level, never letting it get low. When you see fluid coming from all 4 bleeders close them. It’s messy but does work. One problem is it can take several hours for fluid to work all the way through the lines and you will get bored and walk away, opening the opportunity for the M/C to run dry. ðŸ›
