Well, when mine ranaway, I tried to stuff a big **** beach towel in there, it did throttle the motor which may be why it didn't break, kept the RPMs to within governed limits or close probably, I cut the fuel line and that's how it finally choked out. I think it was the good Lord smiling on me that really saved me though, that thing ran for at least 5 minutes like that, I thought I'd be picking up pieces of it or replacing it within the year. And maybe it does take a dummy like me to bend the throttle linkage/governor cover, but the things are not idiot proof, that's for sure. Most shops don't want you this far in an IP but for us DIY guys its a necessity sometimes. I would only do it again if I absolutely had to.