How to change oil on MTD yard machine?

Need to change oil but can't find manual. Need drawing and or instructions on procedure to change oil & type of oil required.
Make: MTD 676 7151 23 HP/38" cut Shhift on the fly lawn tractor.
Kay Peters, January 2005


done
how do I spray some quick start into the carb on the tiller
mtd 31 cc

Ken, April 2006
I just changed mine tonight. I have a smaller engine in mine, so I don't know if they will be exactly the same..

Mine is right at the base of the dipstick tube. It's a plug that you insert a 3/8 socket extension into. Be careful, if your's is like mine, you'll have a mess in no time.

Nick, January 2005