I have a Lawn Boy model 10304 self propelled mower that still runs great. But the cable that goes from the control bail to the engine (shuts off the engine when released) is broken. I can't seem to find one that looks like mine anywhere on line. The end of mine has a large pear shaped lead? ball at the end. I don't see anything like that. What is this cable called? I can find lots of traction cables but not this one. Any help would be greatly appreciated! Thank you.