I also won this on the bay for $60. These engines work great if you take the limiters off , the baffle out of the pipe , and take the flywheel off the prop driver. They really do last forever. http://www.ebay.com/itm/180744134885...84.m1497.l2649 I know I said I never would buy a used engine online ever again , but I emailed the guy and he assured me it was only run 5 minutes to make sure it ran correctly. He then takes them out of the planes and puts in brushless conversions. He had three of these for auction with the tanks of different sizes so I tend to believe him.