Re: Royal Enfield Himalayan - Comprehensive Review of the 'Desi' Adventure Tourer Quote:
Originally Posted by dkaile The purpose of this bike is slightly different than a conventional road biased bike.
To make a long story short, with inputs from other sites that I visited, 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. With aftermarket tuning software, it also allows much finer adjustments of the fuel map.
Carburetors also have advantages. They are more affordable to tinker with. Tuning with a handful of jets can usually be done for only a few rupees in India, whereas fuel-mapping software on an injected bike begins at tens of thousands in bills, in most cases, and non-serviceable by any road side mechanic in India. Carburetors are infinitely more rebuildable and user-serviceable than fuel injection, so for those traveling to remote places for which this bike is purpose built, carbs can have a slight edge. And carbs did not hold back motorcycle performance. Remember the Honda CBR1100XX Blackbird? That old carbureted dinosaur made 133 horsepower in 1998. That's still a very respectable number, even 18 years later.
Ultimately, both methods of fuel delivery have their applications, fans, and detractors. It's unlikely we'll see a resurgence of carburetors in the future, due to environmental concerns. Fuel injection is, at this point, smooth and capable of more accurate, affordable fueling than any other method of atomizing the fuel and air mixture that humans have developed to date. We're able to make our bikes run cleaner without sacrificing much at all. Fuel injection is reliable, and hey - you don't have to figure out how to use an enrichener! But for this RE, I would still prefer a carb.
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In my opinion, the main reason why EFI on bikes in India has a bad rap is because of the manufacturer inexperience and organisational capability. Bajaj, TVS and RE messed up. There were a lot of failures and customers were unhappy. Yamaha and Honda did not mess up and as a result customers were rarely even aware that their bikes (R15, CBR, etc.) even had fuel injection. I'm going with anecdotal evidence so don't hold me to it. Experience and capability counts in the following ways:
* selecting the right vendors
* selecting the right components
* ensuring consistent quality from vendors
* knowing failure modes of various components
* designing systems to prevent failures
* analysis of failures
* implementation of corrective measures to prevent repeated failures.
All these steps require a skilled and experienced engineering, quality assurance, purchase and management teams with various systems and processes in place. I believe that both Bajaj and RE did not have organisational maturity at the point at which they launched EFI bikes and that is the reason the products and the customer experience suffered.
Let's face it: EFI is the future. It's been around for decades and, at least in cars, its reliability is beyond question. As engine management systems get more sophisticated, both performance and reliability will continue improving. Indian emission regulations will continue to become more stringent and all 2 wheelers will eventually be equipped with EFI.
In 1998, EFI technology in bikes was still not good enough compared to carburettors. I'm going on magazine reviews of that time which mostly said that EFI systems did not provide the same level of throttle control that a carburetor did. Even GP bikes were slow to switch over to EFI. A jerky throttle is somewhat masked by a car's large inertia but it can't be done on a bike. On a car, a jerky throttle is just annoying but on a bike it can be dangerous.
Last edited by Motard_Blr : 2nd August 2016 at 11:24.
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