It is a very important practice to keep a chainsaw in a good working condition, as a bad working chainsaw is a danger not only for the user, but also for all those who happen to be around. There are several reasons for a chainsaw to stop working properly, and the bad fuel is the main cause for the malfunction. __% of chainsaw sufferers have it as a result of a bad fuel. If you want to extend the life of your chainsaw, if you want to stay away from dangerous situations, it is advisable to have a clear fuel tank. Therefore, a chainsaw needs a regular cleaning.