I have a push-blower with that engine, horizontal shaft. It does burn some oil but the real problem has been ongoing now for several seasons and is very frustrating. Here's what it does: It will start on full choke and then go WOT just fine most of the time, then it runs for however long, just depends... All of a sudden the engine shuts down as if it lost all power, similar to it running out of fuel (NO this is not the problem)... IF I'm quick to catch it before it cuts off, and I move the choke lever back to FULL choke it will usually start running again, then move it back to wide open and sometimes she revvs right back up as if nothing. Sometimes I have to leave it choked for several minutes before she wants to act right.... She'll run good for however long, sometimes 20-30 minutes or longer, sometimes a lot less, like seconds or a few minutes, it varies depending on mood lol... It almost seems as if certain angles or when hitting a bump causes it, but with the changes in terrain on a turf style surface it is impossible to determine and the change can be so minor, too... Has anyone ever experienced this? I've replaced the coil, the plug, the air filter and breather, the inline and in-tank fuel filters, the pcv breather hose, and cleaned out the carb and all that stuff several times real good. I just thought of it, guess I'll check the float inside the bowl next, any other ideas?