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MULTI POINT FUEL INJECTION (MPFI)

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Every people on this time have heard about "FI" but many people don't know what is MPFI The term MPFI( Multi-point Fuel-Injection   ) is used to specify a technology used in Gasoline/petrol Engines. For Diesel Engines, there is a similar technology called CRD MPFI System is a system which uses a small computer (yes, a small computer without keyboard or mouse, it's more like a microchip) to control the Car’s Engine. A Petrol car’s engine usually has three or more cylinders or fuel burning zones. So in case of an MPFI engine, there is one fuel –injector installed near each cylinder, that is why they call it Multi-point (more than one point) Fuel Injection. In plain words, to burn petrol in an Engine to produce power, Petrol has to be mixed with some air, ignited in a cylinder (also called combustion chamber), which produces energy and runs the engine.  Before MPFI system was discovered, there was a technology called “ Carburetor”.  The carburetor w

9 BASIC THINGS EVERY MECHANICAL ENGINEER MUST KNOW

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1. What does CC mean in Car engine? Now, cc stands for cubic centimetres - It is a unit to measure the engine's displacement. This is the measurement of the volume of the engine's cylinders or "compartments". Now, when you read 200 cc it means the volume of the cylinder is 200 cubic centimeters. CC can also be expressed in the form of litres. So, 200 cc = 0.2 L engine. Remember that: 1 cubic centimeter = 0.001 liters = 1 milli liter. With that you can understand that more cc does not mean more power. So, that brings to the most asked question:  Does more cc mean more fuel consumption? From what I've read, it is generally true that a vehicle with more displacement will have more fuel consumption. However, there are very many other factors that affect fuel efficiency. Therefore, by minimizing engine displacement, you will not ensure increased fuel efficiency. 2. What is meant by 'wheelbase' and 'ground clearance' in a

CBS IN HONDA BIKES EXPLAINED

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The Honda Combi Brake system was introduced in India with the Honda Activa in 2009. However, this system has been in use since more than 30 years internationally. The Honda Combi Brake system is a first-in-industry technology. What is the Honda Combi Brake System? The most efficient way of braking is to apply the front and rear brakes simultaneously. But it is a practice, most two-wheeler riders have not mastered.Combi brake means that the brake will act on front and rear wheel together every time you apply the brakes. This means a lot of improved safety. How does the Honda Combi Brake System Enhance Safety? In two-wheelers (scooters and bikes), there are two separate brake controls for front and rear wheels.Most of the two-wheeler riders apply only rear wheel brake or use the only rear brake in most of the cases. However for most effective braking and stopping in small distance safely without losing control, both front and rear brakes should be used together. Most people f

Air Cooled Vs Liquid Cooled Motorcycle Engines

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What is Liquid Cooled Motorcycle Engines? Many bikers use liquid cooled engine but they don't know why use liquid to cool the engine even many garages don't have any knowledge how to change coolant and when. Most of 150 to 390cc bike like R15, R3, Pulsar 220,200,400, CBR 150,250 when goes showroom for servicing mechanic change engine oil but not change coolant because they don't know about coolant As the name dictates, liquid cooled motorcycle engines have their heads without fins and surrounded by the liquid cooling system. The liquid cooling system uses a coolant (the green liquid that you see) to keep the temperature of the engine at an optimum level. The coolant flows through the channels and absorbs the heat from the engine and comes to the radiator to lose that heat. Sometimes one can even hear a fan located in the reservoir whirring with all its might. That happens when the air inflow of the radiator is not optimum, so the fan brings in the air forcefully to d

OIL COOLED ENGINE EXPLAINED

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The term oil cooler and oil cooling became very popular in India after launching the Pulsar series 200 (discontinued) and 220 F from Bajaj motors. Oil cooling as we know from the name itself is cooling of  engine  oil by the help of a special  component  called an oil cooler. Generally, an  engine  oil will lose its viscosity if temperatures are very high than its specified heat range. As a result, it may not be able to lubricate the mechanical components properly as specified. To overcome this problem and to provide better cooling especially for  air-cooled  high-performance engines oil coolers are generally used. Oil cooling is a way apart from liquid cooling mainly in the following  aspects , * It does not maintain a constant temperature like a liquid cooled engine. * It does not have a thermostat, bypass system, and  cooling fan  but instead uses a small radiator alone. * Cost wise it is very economical because of simplicity and components involve