I have a newer Ferris IS600z, and when I change the oil, only about 1/2 of the oil drains out (about 30oz or so). There is a rubber hose that you can pull through a hole through the bottom, then unscrew the plug at the end of the hose to drain the oil into a container. I let the oil drain for maybe 1/2 hour and it slowed to barely a trickle if that. The mower takes 62-64 oz of oil, so I knew that only 1/2 drained out in that time since I drained it into a 64 oz container. I wouldn't expect it to take much longer than 1/2 hour for most of the oil to drain out. Any suggestions?
Engine at operating temperature, tilt the mower to position drain in lowest position, remove dip stick and apply a couple of pounds air pressure into dip stick tube.
Engine at operating temperature, tilt the mower to position drain in lowest position, remove dip stick and apply a couple of pounds air pressure into dip stick tube.
