Hello,sounds like a carb problem.Clamp the fuel line and remove the bottom carb bowl nut
Hi. I tried the idea and it still does not work. Other ideas?
If it starts then quits like that it is most likely a fuel problem.Did you poke the wire down the center and through the holes shown above?.Check to see if the carb is loose,see if it moves if you try to wiggle it.
Does your mower vibrate when it does run?
Here is a link,look it over. http://outdoorpowerinfo.com/repairs/briggs_125k02.asp
No luck. I took it to a mover repair shop who are changing $120 for a complete 'service'. Thanks for your ideas. I do not plan to provide feedback since you tried to help. Thanks.