Well, I purchased a Troy-built self propelled lawn mower with the honda gcv160 auto choke engine about 3 years ago. I really liked this mower, especially the personal pace feature, however, this auto choke system is driving me crazy. The last year I've had nothing but problems with engine surge after warm up. I've had it in the shop twice and after a few cuts, it's back doing the same. What was honda thinking?