Do you know what actually happens when we switch the knob to reserve?
A regular
motorcycle has main tank and a reserve tank. There is no separation between
them but they belong as a whole tank. The knob that is present at the left side
down under the bike enables us to switch to either MAIN TANK, OFF and
the RESERVE TANK.
In reserve, a
smaller valve gets opened so it allows the engine to consume less fuel when
compared to the main tank. Assume,
your bike tank has a fuel capacity of 12 liters. So if you fill the tank
completely, some of the fuel goes to the other side of the tank depending upon
the reserve capacity of the tank.
Generally, Most Of
the bikes have a reserve tank capacity of 1–3.5 liters.
So if we go out on a long run and we
forget to fuel up and somewhere we find ourselves with no fuel, then this
reserve plays its role. We need to just turn the knob towards the reserve mode
and then the bike starts again. The small amount of fuel that is present helps
us to go to the nearest petrol bunk and refuel.
There is no rule
that only we must drive in the Main mode and not the reserve. Even if we put
the knob in the reserve mode and drive, there is no problem. But there is no
point of a little fuel left when the fuel is completed. It means the reserve
mode consumes both the main and the reserve fuel. If that's the case, in long
runs we will lose ourselves somewhere.
So it's better to
put the knob in the MAIN mode always after refuelling. If the bike stops
suddenly, then we can turn the knob to reserve and refuel.
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