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Yamaha MA190 Engine 4-Stroke

R5,500.00 Inc VAT


Yamaha MA190 Engine 4-Stroke

The Yamaha MA190 is a 189 cc (11.5 cu-in) single-cylinder air-cooled 4-stroke internal combustion general-purpose gasoline engine with a vertical shaft manufactured by Yamaha Motor Co., Ltd.

The Yamaha MA190 engine has a low-profile OHC (overhead cam) system with steel chain drive for optimized engine size and durability; a hemispherical head with angled intake/exhaust valves; a cast-iron cylinder line; float type carburetor; transistorized ignition system.




Model MA190
Type 4-stroke, OHV, single cylinder
Displacement 189 cm 3 (11.5 cu-in)
Max. horsepower 5.0 PS (3.7 kW) at 3,600 rpm
Max. torque (crank PTO) 11.2 N·m (1.14 kg·m, 8.26 ft·lb) at 2,400 rpm
Carburetor Float type
Cooling system Forced-air
Ignition system Transitorized (T.C.I.)
Lubricating system Mechanical splashing
Starting system Recoil
Fuel used Unleaded gasoline (octane number 86 or higher)
Fuel tank capacity 1.2 L
PTO shaft rotation Counterclockwise (from PTO shaft side)



Yamaha MA190
Length, mm (in) 425 (16.7)
Width, mm (in) 360 (14.2)
Height, mm (in) 270 (10.6)
Dry weight, kg (lb) 14.0 (30.9)


Oil system
Oil type Yamalube 4-stroke or an equivalent (SE or SF)
Recommended oil SAE 10W-30, 10W-40
Oil capacity 0.6 L (0.63 US. qt, 0.53 Imp. qt.)
Ignition system
Spark plug NGK: BPR7HS
Spark plug gap 0.7-0.8 mm (0.028-0.031 in)
Spark plug tightening torque 20 N·m (2.0 kg·m, 14 ft·lb)



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