This is on a Sears Poulan walk-behind mower. B&S Series 500 - 5.00 - 128cc

I must be blind. I don't see either of the oil drains shown in the manual. Here is the locations shown in the manual:



Sorry no camera so can't show you an actual picture of my mower.

 

You might want to look for the words "If equipped" in the manual

Some engines no longer have drain plugs, either have to remove engine and dump oil, or suck it out....

 

Well that sucks. Thanks. Guess I'll run it out of gas and turn it upside down if that is the case. Thanks. Checked it does not say "if equipped" but does list the oil filler tube as one way to remove the oil. Thought surely there is a better way.

 

Don't turn it upside down, just tip it so that the oil can drain from the tube into a container. I use an oil-vac pump like you can buy at lowes or tractor supply. One of these: LiquiVac I don't know if there are other manufacturers or not, but this one works well and is cheap. You can do the riding mower and other stuff with it too.

 

Thanks Cheese. I think I will try dumping it first..

 

If your plug is in location "B" and the head fo the plug is close to being flush, it may be there, just hidden under dried grass. Have you scraped around with a putty knife?

 

It was clean underneath. Just bit the bullet and drained through the filler tube. Thanks everyone for your replies.