Title: Sheared-off Shaft
Review: I loved this machine...for 2 and a half years of quiet running, easy-operating use. And then the crank sheared off. End of machine. Think of the crankshaft in a car or a motorcycle: it is supported in bearings at both ends. But in this engine the crank is supported in only one bearing and the piston rod is connected to an eccentric counterweight on the opposite end of that crank, which protrudes only about an inch or so out of the bearing. But it's long enough to shear off. I think the basic design is not a bad one, but the steel of the crank must be made stronger or of greater diameter. Still, I'd love to have a 4-cycle string trimmer; Honda makes one, but it's far too expensive.
Is this product review negative?