Are fuel injected scooters better?

With all those sophisticated components, fuel injection is a far more precise means of feeding the engine fuel, so the motorcycle runs better. There’s no choke lever to mess with on cold mornings or leaking float bowls or petcocks or gummed-up jets.

Are fuel injection bikes better than carburetor?

Fuel injection doesn’t give appreciably more power, and it doesn’t provide much better gas mileage. Fuel injection does allow for more accurate control of the air/fuel ratio, and in doing so, allows a bike to run cleaner and keep a catalytic converter on board. And carbs did not hold back motorcycle performance.

Does a carburetor use more fuel?

A carburetor that flows more air doesn’t necessarily use more gas. In fact, given the same engine, a carb rated at a higher cfm number often needs larger fuel jets than does a smaller carb to deliver the same air/fuel ratio.

What is the difference between fuel injected and carbureted?

Unlike carburetors, a Fuel Injection system is comprised of a complex set of electronics and sensors. In carbureted systems the fuel gets drawn from the tank, while in a Fuel Injected system it depends on a fuel pump installed inside the tank for a fine-grained control over fuel flow.

Are carburetors hard to work on?

While a carburetor is not particularly difficult to rebuild, there are many performance enthusiasts who shy away at the thought of disassembling and rebuilding, often choosing to simply buy a replacement instead. As a simple mechanical device, a carb is reliable, relatively cheap, and long lasting.

Do carbureted engines last longer?

The carburetor contains jets that will push the gas into the combustion chambers. So with a carburetor, the best fuel to air ratio for each cylinder is approximated for the best performance. However, carburetors do last longer than fuel injection systems and are favored in motor sports.

Are carburetors really that bad?

Carburetors have no mechanical ability to correct lean or rich fuel mixtures. If a rich mixture is present, possibly due to carburetor float problems or a sticking choke, you’ll get poor fuel mileage, bad emissions, and carbon build up on spark plugs and pistons.

What are disadvantages of carburetor?

Disadvantages of Carburettor:

• Cannot provide a perfect air-fuel ratio consistently.
• Cannot control the wastage of fuel effectively.
• More number of parts in some complex designs which makes diagnosis difficult.
• Some designs develop the problem of vapour lock resulting in engine stalling.

Why did they stop using carburetors?

Most car manufacturers stopped using carburetors in the late 1980’s because newer technology was coming out, such as the fuel injector, that proved to be more efficient. There were only a few cars that continued to have carburetors, such as the Subaru Justy, until about the early 1990’s.

How big should a carburetor be for a scooter?

Carburetor diameter(12mm) x 5 = 60(or number it calculates) x 0.9 = sea level jet size. For Denver: Take 0.948(Denver atmospheric pressure at 70 degrees) x jet size(60) = new jet size(56.88) round up 57 would be the proper jet size to start at for a stock scooter using a 12mm carburetor.

What’s the correct CF for a 12mm carburetor?

Take 0.948 (Denver atmospheric pressure at 70 degrees) x jet size (60) = new jet size (56.88) round up 57 would be the proper jet size to start at for a stock scooter using a 12mm carburetor. the CF is correction factor. CF=1 for sea level, 70 degrees F. If it is 80 F at 5000 ft, you calculate a new CF, say 0.9 (this is just an example).

What should the main jet be on a carburetor?

You take your main jet that is for a CF=1, say a 200. Multiply 200 by the CF=.9 to get 180 as the new main jet. This gives you a good place to start your fine tuning.

How to determine the proper jet size on a Chinese scooter?

How to determine the proper jet size on a Chinese scooter: Carburetor diameter (12mm) x 5 = 60 (or number it calculates) x 0.9 = sea level jet size