Ryobi 725rE Operator's Manual page 22

Engine Type ................................................................. Air-Cooled, 2-Cycle
Stroke ...................................................................... 1.25 in. (31.75 mm)
Displacement ................................................................... 1,9 cu in. (31 cc)
Clutch Type ........................................................................ . Centrifugal
Idle Speed RPM ................................................................. 2,800-3,600 rpm
Operating RPM (Trimmer) ......................................................... 7,200-8,300 rpm
Ignition Type ......................................................................... Electronic
Ignition Switch ......................................... ,............................. Slide Switch
Spark Plug Gap ................................................................ 0.020 in. (0.5 mm)
Lubrication ......................................................................... Fuel/Oi! Mixture
Fuel/Oil Ratio .............................................................................. 32:1
Carburetor ................................................................ Diaphragm, All-Position
Starter ............................................................................ Auto Rewind
Muffler ....................................................................... Baffled with Guard
Throttle .................................................................... Manual Spring Return
Fuel Tank Capacity ................................................................ 12 oz. (355 ml)
Drive Shaft Housing .......................................................... Steel Tube, Click-Link
Throttle Control ................................................................. Finger-Tip Trigger
Unit Weight (No fuel, with cutting attachment, cutting attachment shield and J-handle) ........ 12,25 Ibs. (5.6 kg)
Cutting Mechanism ............................................. SpeedSpool Dual String Cutting Head
Shoulder Strap ............................................. _ ........................... Optional
Line Spool Diameter ............................................................... 3 in (76.2 mm)
Trimming Line Diameter ......................................................... 0.060 in (2.03 mm)
Cutting Path Diameter ............................................................. 15 in. (38.1 cm)
Unit Weight (Add*On only) ........................................................ 5.25 Ibs. (2.36 kg)
Cutting Depth (maximum) .......................................................... 2.5 in. (63.5 mm)
Wheel Diameter ............................................................... 3.75 in (95.25 ram)
Gearbox Ratio .......................................................................... 1.25:1
22