The Rato R80 is a 79 cc (4.8 cu-in) single-cylinder air-cooled 4-stroke internal combustion general-purpose gasoline engine with horizontal shaft manufactured by Chongqing RATO Holding (Group) CO., LTD. The R80 engine is ideal for the following applications: mini-tiller, pressure washer, generator.
The Rato R80 engine has a side-valve design; flat suction valve carburetor; recoil starter or electric starter and transistorized magneto ignition (TCI) system.
A 52.0 mm (2.05 in) cylinder bore and 37.0 mm (1.50 in) piston stroke give the Rato R80 motor a total of 79 cc of displacement. Compression ratio rating is 9.0:1. It produced 2.0 HP of horsepower at 3,600 rpm and 3.6 N·m (0.37 kg·m, 2.65 ft·lb) of torque at 2,500 rpm.
|Type||4-stroke, side valve, single cylinder|
|Displacement||79 cm 3 (4.8 cu-in)|
|Max. horsepower||2.0 HP at 3,600 rpm|
|Max. torque (crank PTO)||3.6 N·m (0.37 kg·m, 2.65 ft·lb) at 2,500 rpm|
|Carburetor||Flat suction valve carburetor|
|Ignition system||Transistorized magneto ignition (TCI)|
|Starting system||Recoil / electric starter|
|Stoping system||Ignition primary circuit ground|
|Fuel used||Unleaded gasoline (octane number 86 or higher)|
|PTO shaft rotation||Counterclockwise (from PTO shaft side)|
Cylinder Block and Head
|Bore x Stroke||52 X 37 mm (2.05 x 1.50 in)|
|Warpage (limit)||0.10 mm (0.004 in)|
|Oil type||4-stroke or an equivalent (SJ)|
|Recommended oil||SAE 10W-30, 15W-40|
|Oil capacity||0.35 L|
|Spark plug gap||0.7-0.8 mm (0.028-0.031 in)|