The reason we "jury rig" these things is because the EPA would have all of these removed from the market if they could. These little one cylinder providers of mower/tiller/power washer/generator power are pretty good polluters when adjusted to run right. The manufacturers send them out of the factory so lean, they won't run well if there is so much as a pin tip-sized piece of debris between the carb's bowl and the spark plug. So, instead of cleaning out the carb twice a year, you can just adjust the mixture a little, even it it means having to defeat whatever guard is keeping it from turning. My little $9 tool to adjust 2 stroke weekwhackers is getting quite a work out this year already because of the EPA's unrealistic guidelines. Brand new, running whackers coming in for service...go figure. And, the worst part is, my conscience won't let me charge for the 45 seconds of work. I do it while they watch...dummy me! Oh, and Hondas on mowers aren't usually notorious for surging, the Honda 160 is.