I purchased the Troy built riding lawn mower less than a year ago from Lowe's. Four times the compression release valve and camshaft has been replaced 3 times, well, today it has broken again, I have only mowed with this maybe 8 times. I have a knee and back problems, my wife has heart problems, we bought this to save our health, but this horrible machine has been in the shop for Lowes for 8 weeks out of this summer...who can afford to buy this product when it is so defected it can't make it through one mowing. A class action suit is what I'm planning...comsumers please don't waist your money on Troy built mowers. Our old Sears model lasted for 8 years...what has happened to Troy?