Small Engines (Lawn Mowers, etc.): Vantage 3.5, tecumseh vantage, engine crankcase

Question
Hi!  I can't seem to find anywhere how much oil to put in my lawnmower...  It is a Tecumseh Vantage 3.5 engine model TVS90.  There is not a dipstick on it just a fill cap.  I just drained it and can't really measure the old as I think over time it has possibly "burned" it up as not much at all came out.  The lawn mower has been around for a bit and unfortunately I can't seem to locate any paperwork.  Nor am I having any luck on google!  :(  I would greatly appreciate your input concerning this.  The only thing I came up with at this point seemed to say 21oz.  It took only 11 and I think it may be too much, it is filled completely, but I am afraid it may be too much.  I have no problem draining it and starting over.  Thank you again in advance.

Answer
Hello Amber:

If this Engine has the Oil Fill that is Located Near the Bottom of the Engine Crankcase with a Male Plug, then it is Filled to the Top of the Threads. If this Engine has a Fill Tube that Extends from the Top Of the Engine Down to the Fill Hole, then there is Supposed to be a Dip Stick Attached to the Cap. 21 oz is the Normal Amount of Oil to Fill Most Newer Engines. Since this is a Tecumseh Engine, I have a PDF Site Addy that May Assist you Also. http://www.tecumsehpower.com/CustomerService/BSI.pdf  . If you Hit a Snag or this Does Not Correct the Problem,  I am Here if You Require More Assistance. Hope this Helps. Let me Know What Happens, Please. May the All Mighty Bless You and Yours. Thanks.

Good Luck

Respectfully

John

PS: I am Allowed to Answer 10 Questions a Day. If you See I am Maxxed Out, then Try Submitting your Question at or Just After 8pm EST (US). My New Day Starts then. Thanks.

Respectfully

John