Join Date: Nov 2004
Location: Cartersville, GA
I'm willing to bet the problem is a sheared flywheel key just as Hankster said. The only problem is that Ryobi uses a flywheel with the key made on to it. You can't replace the key without replacing the whole flywheel (which can be expensive). But don't worry, you can repair it if you are careful. Just mark the flywheel and crankshaft where the key use to go, rough the crankshaft up a little bit with some emory cloth, apply a small amount of JB Weld epoxy to the crankshaft, put the flywheel back on and carefully tighten it so that the marks stay lined up. Let the epoxy setup over night and it should crank right up.
I've fixed several Ryobi blowers (customer units after telling them how much the flywheel would cost) like this and I've never had a problem with them breaking again. The epoxy fills in the void where the key use to be and acts as a new key....it also makes a tighter fit between the crankshaft and flywheel which will help prevent the new "key" from breaking.