I replaced the seals in one of the hydro pumps and the oil looked very milky. I assumed it had gotten water in it so I tried to get as much of it out of the system as possible. Got it all out back together and refilled the tank with 20w50 and went through the process the manufacturer recommends to remove any air. Well the left side that I didn't mess with is fine and strong but the right just doesn't seem to want to purge the air. I've ran it jacked up for about 10 mins moving the levers...
Scag Tiger Cub, air in the hydro system
Scag Tiger Cub, air in the hydro system