I have had the same issue with my 10323. Purchased the last one in South Louisiana, for sentimental reasons. Back in my childhood, I rode my bike across town and mowed grass with the home-owners Lawn Boy movers and I fell in love. What I bad decision I made buying this piece of crap! Words can't express how disgusted I am with this machine! The engine "surged" from day #1. It went back to the shop 3 times and the problem was never solved. I decided to push it under my covered deck and let it sit. It has been there for about 8 years. For some reason I decided that the machine needed a rebirth. COMPLETELY took the machine down. New coil, plug, piston, prime bulb, gaskets and needle bearings for the rotating assembly. It starts beautifully with ether, but will not stay running. For some reason, I can't seem to get the gas to the carb. Rebuilt the machine completely today (and carb), same problem. Anyone have a solution as to why fuel doesn't get to the carb when I prime the crap out of this machine? I love Lawn Boys, always have. I have a lemon and I know it. My machine has approximately 3 hours on it. I spent 5 hours on this machine today. If I was paid my normal wage while working on this machine, I would have wasted $350 today. I'm stubborn and I don't let machines get the best of me (my wife thinks I am crazy, she told me to go buy a new one). We have a lawn service that cuts the yard, but that isn't the point, I want my machine to run. Any suggestions? Thanks in advance and sorry for the long post.