Try this site:
http://outdoorpowerinfo.com/repairs/
in the tire
bad gas, dirty carb needs new sparkplug. youtube has repair vids on how to do what. user (davidsfarm) has great tips
yes... near primer bulb
Yes! The motor says its 12.5 hp but that's b.s it's the exact same thing as an 11hp Briggs and Stratton, cept they have a different style carb
Too much engine oil could be the problem.
You may have clogged jet in the carb, or in the small fuel filter. Check everything from the tank down to carb, and if necessary take carb apart.
The float valve is probably stuck open.
not getting gas.... needs carb cleaned
There are two bolts holding it on to the block. You may have to remove some shrouds to get to it.
It is fuel related and depends on the model as that HP could either be a diaphragm carb (and that would be it) or a float carb (and a dirty jet is likely the culprit.
Could be plugged fuel filter, sticking float:Change fuel filter, clean carb.
dirty fuel filter or water in the bowl of the carb