Identifying where the race line is on a circuit, is critical to the amount of grip a kart will have when cornering. As more and more drivers circulate on one line, the rubber from their tyres gets laid onto the circuit which forms a darker black line. This is line that you want to look ahead for and place your four racing tyres on.
Treat it like a video game, where they show you the correct line to drive, once you can spot the difference between the darker line, compared to the lighter coloured section of the race track, you can place the kart in the best spot. A lot of drivers starting out, tend to turn in too early, so what happens is that not all four tyres are on the racing line, and they don’t have the same grip as the more experienced drivers.