this is to ensure that everything evaporates great productespecially for 2 wheeler sconsidering the quality of fuel sold in indiait is likely to clog up the carburetor eventually leading to a fall in mileage and performanceso its always a good idea to inspect clean the carb at every servicebut instead of spraying this directly into the carburetor as it saysjust take out the carburetor from the vehicletake it apart and clean it thoroughlyyou will get much better results great product