Why don't some motorcycles have kickstarts? Reason for advising to kick start in morning | ECU & FI 

#bikes #kickstart #selfstart
In this video, we have talked about why modern motorcycles don't have kick start in it. Before going into that, there is a saying that in the early morning or in winter, we have to start the engine with a kicker only instead of self-starting. To answer this question, we must first know how kick start and self start works. Let's start with a kick starter. The kick starter is an external lever linked directly to the crankshaft of an engine via various gears. In order to use the kick starter, the rider must bring the lever out and kick it downwards with a moderate amount of force. When the lever is kicked, it causes the crankshaft to turn. In turn, this causes the combustion process and thus the engine starts. This is how kick starters work. Now, let's move on to self start. In self start technique, two primary things are important. They are a starter relay and starter motor. Power source for the starter motor comes from the battery. Here the starter relay acts as a switch which regulates the electric supply from battery to the starter motor. When we press the self start button, the starter relay draws the required amount of current from the battery and gives it to the starter motor through the starter relay. And this starter motor causes the crankshaft to rotate and this inturn starts the engine. This is how self start works.
Now, move on the question which arrived earlier. The main reason why people advise to kick-start your bike in the morning is that the cool temperature makes the fuel get stuck to the cylinder. During the night, cooler temperature makes the ambient temperature of the bike low and that makes it difficult to start. Moreover, the battery also cools down during the night, making it difficult to awaken it from its dormant state which is nothing but the inactive state of the battery. In absence of friction and combustion, the starter relay requires extra effort to draw current from the battery, which puts extra load on the same. If this goes on continuously, the battery will fail sooner or later. To avoid this situation, people and friends advise to kick-start your bike in the morning. But suddenly, here again another question arises, that is if there is a kicker, we can start the bike by using it. But,modern motorcycles does not have any kicker then can we start using self start. The answer for this question is, we can start with self start only if the bike is completely electrical. It is because, these bikes has fuel injector and electronic control unit (ECU). So, it will take care all the necessary things when we on the bike with self start. And also we have talked about direct injection and indirect injection.
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