Reduce the idle speed of the engine if it's too fast. Recommended idle speed for your bike, how to change the idle speed, etc. vary for each bike. For Honda Unicorn, the recommended idle speed is 1400 ± 100 rpm. You can adjust the idle speed by adjusting the knob shown in the picture. One thing to keep in mind while adjusting idle speed is that, you should ride the bike for 2 or 3 kilometers to warm the engine up before setting the idle speed.
Loosen the clutch cable if it's too tight. But how do you know if the clutch is too tight? A few symptoms I know of are:
- The bike's pick up is slower than usual.
- The engine stresses more than usual even at slow speeds.
- When you have to use the clutch very frequently -- for example in stop-and-go traffic -- because the clutch is too tight your fingers become sore quicker.