Small Engine Troubleshooting Problems? Ask a Mechanic Now.
Welcome to JUST ANSWER small engines, let me try to help you !! I don't know it all, but maybe together we can get you a satisfactory answer!
Spring breaks usually because there is excessive vibration , caused by bad belt or pulley, or bearing out in a spindle, or idler pulley. .
belt is good, no missing areas, all pulleys straight? spindles turn freely? And idlers free to rotate? Pulley alignment is good?
I see question is still open, did you find problem?