Rato RV175

Rato RV175The Rato RV175 is a 173.9 cc (10.61 cu-in) single-cylinder air-cooled 4-stroke internal combustion general-purpose gasoline engine with vertical shaft, manufactured by Chongqing RATO Holding (Group) CO., LTD.

The Rato RV175 engine has a single-cylinder with a vertical shaft; an overhead valve (OHV) design; flat suction valve carburetor; recoil starter or electric starter, transistorized magneto ignition system and centrifugal mechanical governor system.

A 70.0 mm (2.76 in) cylinder bore and 45.2 mm (1.78 in) piston stroke give the Rato RV175 motor a total of 173.9 cc of displacement. Compression ratio rating is 8.3:1. It produced 3.0 kW at 3,600 rpm of horsepower and 9.5 N·m (0.97 kg·m, 7.0 ft·lb) at 2,500 rpm of torque.

General information

Engine Specifications
ModelRV175
Type4-stroke, OHV, single cylinder
Displacement173.9 cm 3 (10.61 cu-in)
Max. horsepower3.0 kW at 3,600 rpm
Max. torque (crank PTO)9.5 N·m (0.97 kg·m, 7.0 ft·lb) at 2,500 rpm
CarburetorFlat suction valve carburetor
Cooling systemForced-air
Ignition systemTransistorized magneto
Lubricating systemSplash
Starting systemRecoil / electric starter
Stoping systemIgnition primary circuit ground
Fuel usedUnleaded gasoline (octane number 86 or higher)
PTO shaft rotationCounterclockwise (from PTO shaft side)

Service Information

Oil system
Oil type4-stroke or an equivalent (SJ)
Recommended oilSAE 10W-30, 15W-40
Oil capacity0.6 L
Ignition system
Spark plugNGK: BPR6ES
Spark plug gap0.7-0.8 mm (0.028-0.031 in)
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