The Yardman number is ***** - good luck trying to find their manuals (I cannot)
I must be classed as incompetent with computers as I am unable to work the attachment system
However if you go into Briggs & Stratton website and click on "how to find engine numbers" the last engine on the right is the one before someone has adapted it for electric start etc. Certainly the air filter housing is identical
More info that might help
DX-70 is the green and yellow machine with the grass collector under the east, Approx 13 years old - no pictures on MTL site but plenty on ebay.
the carb fitted looks a lot like the Walbro LMT without the anti after-afterfire solenoid where a small short gasketed bolt is fitted and appears to simply drain out the fuel
Would you think that this also holds the bowl on and that if removed I could tap the bowl off with a hammer and screwdriver?
I have been able to loosen a cowling on top of the engine to reveal its number - 198707- 0141A1-0102141A