Purchased in 2019. Good mower but with some problems now. I ran the mower with the plug gapped wrong for awhile. Mixture too rich , would backfire some on stopping engine. Got that problem solved.. Now after 30 minutes will lose a small amount of compression then start loping and then die. Give it 20 to 30 minutes and will run fine for 15 m to 20 minutes and do the thing again. This mower is great for my yard: mulch mowing and mulching leaves. I do not want to replace it. Any help would be greatly appreciated. This mower is no longer available for purchase in NC