Thread: 30 hp yamaha

have a 1998 30 hp yamaha 2 stroke, last used it about 4 weeks ago and it ran fine, but did not want to stay in reverse and when in netural it would bump the foword gears, went out today to check it while the weather sould let me and found that when i try to put it in gear the prop will not engage, i tryed it while it was running and not running, but no forword or reverse, any ideas?

I think I may have found the trouble, ( 30hp tiller) behind the prop there is a large aluminum nut that threads into the housing with a lock ring and looks like it holds the prop shaft and gears in place, well the threads on the large nut had deteriorated and the nut backed out of the housing letting the shaft and gears back out of place. after I pushed the shaft back in place it seems to work right, just have to try and find the nut and lock ring. Just hope it has not hurt the gears that might be spencive. will make another post so it may help others