I WANT TO PUT A REED BOX ON MY TORO SO I CAN GET A GREATER DURATION WITHOUT THE REVERSION. DOES ANYONE KNOW WHAT THE PORT TIMING IS ON THESE RYOBI'S WITH THE REEDS. MANUFATURER MUST HAVE THOUGHT THEY WERE NESSARY BUT THE OTHERS DONT. WHAT SECRET PORT STUFF ARE THEY DOING TO THESE ENGINES?
FARMER TED