Motorcycle Fuel Injection (FI)

Motorcycle Fuel Injection system is now replacing the carburetors in the motorcycle. The electronic fuel injection is little expensive but it will provide perfection combustion and nearly pure emission. As per the new Indian regulations EFI (Electronic Fuel Injection) has replaced the mechanically operating carburetors in the latest Motorcycle models produced in India. In India it is compulsory for all the new motorcycle to be fitted with electronic fuel injection systems (EFI). So every single new motorcycle and scooters has to use this EFI system post 2018.

This fuel injection system provides only the required amount of petrol mixture according to the riding condition. So this will help to increased mileage and cleaner emissions from the motorbike.

Fuel Injection System is assembled with sensors, actuators and one Engine Control Unit. Its Sensors will detect Throttle position, temperature, atmospheric pressure and engine condition. Depending on the details, the control unit will signal to inject proper amount of fuel mixture to the motorcycle engine.

Fuel Injection System will helps to achieve best engine performance at all speeds by providing proper volume of fuel and air. The amount will be calculated at 1/1000 sec based on Inlet pressure / Throttle position / Engine rotation speed and many other factors.

Pulsar 200NS Motorcycle

Some motorcycles are available for the buyer to choose either Carburetor or Fuel Injection fitted model to buy. The fuel injection model is priced around IRs 5,000/- more than the carburetor fitted model.
DIY Motorcycle Repair Performers.
You can play with your Carburetor as you want.
But with the FI (Fuel Injection) you can't do it as you want it. you must have good knowledge of electronics, electronic components' measuring meters, If you get warning light in the Digital console better take it to the dealer.

Yamah motorcycle marked with FI, if the machine is equipped with Fuel Injection. (It employs 6 sensors)
Examble: Yamaha motorcycle FZ FI. Means F stands for Four stroke, Z for racing Breed and FI means Fuel Injection.

Disadvantage of FI: High maintenance cost.
Need good amount of Fuel in the tank.

You can get following models with Electronic Fuel Injection in Sri Lanka.

  • Hero Karizma ZMR and Glamour125cc
  • Bajaj Dominar 400 and Pulsar NS 200 Fi
  • KTM Duke 200 and Duke 250
  • Honda CBR 150 R and CBR 250 R
  • Yamaha FZ (FI), FZS (FI), YZF R15 (S & Version 2,3), Fazer FI and Fazer 25,
  • Suzuki Gixxer Fi
  • Kawasaki 2018 Z250SL ABS (DFI - Digital Fuel Injection)
  • TVS Apache RTR 180 & 200 4V (FI versions)

Check this video.

Fuel Injector

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