Got this low end rotary mower in June 2011. There are no drain plugs to remove old oil. The B & S motor shown has the space-age looking cowl removed. I tried a suction type pump, got about 75% out, then tipped the whole thing and got another few ounces. What were they thinking? Anyone have ideas how to remove all the old oil?
![How to change oil in this? How to change oil in this?](https://www.hearth.com/talk/data/attachments/81/81490-2bbd032a507e844f447283d6bd6a3ea1.jpg)
![How to change oil in this? How to change oil in this?](https://www.hearth.com/talk/data/attachments/81/81490-2bbd032a507e844f447283d6bd6a3ea1.jpg)