Re: Help.... the ethanol in my gas ate up my doel fin... does it really do anything??
It was probably the salt water. If you dip your motor in for more than 15 minutes without rinsing, it will all fall apart. Especially a frsh-water Yamaha.
If not that, the most likely the transom saver caused the dolphin doelfin to degrade. or not having enough chain on your anchor line.