Ok my guys were telling me at full power the edger starts to cut out and eventually shuts off. Took a look at it today so I thought it was the spark arrestor. So i just went ahead and took off the muffler for a second, and still had the problem. Replaced the fuel filter with a new clean one, and ended up taking off the air box and running it wide open. Still wasnt able to run it at full throttle without it shutting off. what else could it be, bad piston ring? could it be the spark plug? but its only at full acceleration though.