Old hoses had crumbled even before I acquired it so I
don't know how they went! The prime bulb is also gone! It is a mix gas & oil trimmer, SN# 607202543, double string, 31cc 15 in. So, how do I route the fuel
hoses on my Ryobi 725R?

Vicente Banda, April 2009

Fuel filter line goes to the BOTTOM of the carb. On top of the carb that fuel line goes to the small tube on the primer. Then attach the fuel line to the large tube on the primer and it goes into the tank. On the bottom of the fuel tank are two holes closest to the carb is the filter and the other is the return line

John, June 2009