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ROBIN EX SERIES ENGINES
EX21

Specifications

Specifications

Specifications

Performance Curves

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Robin EX21 Engine

Specifications:
  • Type: Air-cooled, 4-cycle, slant single cylinder, OHC, horizontal PTO shaft
  • Bore x Stroke: 67 x 60 mm (2.64 x 2.36 in.)
  • Piston Displacement: 211 ml (12.87 cu.in.)
  • Continuous Output kW/[PS](HP)/rpm: 3.2[4.4](4.4)/3000
                                    3.7[5.0](5.0)/3600
  • Maximum Output kW(PS)[HP]/rpm: 5.1[7.0](7.0)/4000
  • Maximum Torque N * m[kgf * m]: 13.9[1.41]
                                (lbf * ft)/rpm: (10.26)/2500
  • Direction of rotation: Counter clockwise as viewed from PTO shaft side
  • Fuel: Automobile (unleaded) gasoline
  • Fuel Tank Capacity liter (US gal.): 3.6 (0.95)
  • Lubricant: Engine oil SAE 10W-30, 20W, 30W
  • Lubrication: Mechanical splashing type
  • Lubricating Oil capacity liter(US gal.): 0.6 (0.156)
  • Carburetor: Float type
  • Ignition System: Transistorised
  • Spark Plug: NGK BR6HS
  • Governor: Centrifugal flyweight type
  • Dry weight kg(lb): 16(35.28)
  • Dimension l x w x h mm (in):311 x 366 x 335 (12.24 x 14.41 x 13.19)

Options:
  • Lighting Coil: 40W
  • Starter (Standard): Recoil +350mm Rope, + Rotating Screen
  • Starter (Optional): Electric
  • Air Cleaner (Standard): Semi Dry - Dual Elements, Pre-Cleaner, Oil Bath, Remote
  • Muffler: Deflector, Spark Arrestor
  • Speed Control STDL: Lever - Cable (Remote) Speed Control, High Speed Fix
  • Fuel Tank Option: + Gauge
  • Separate liter (US gal): 12 (3.17)
  • Oil Sensor: Option Available
  • Generator Specification: Large & low profile Air Cleaner, large & low profile Muffler, Air Guide & Spark Arrestor (Option Available)

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