If the saw has been cutting fine in the past but its currently experiencing problems, then most likely that the chain has been dulled.If it is your first time using the chain and the chainsaw seems to be burning the wood, then probably its cause the chain has been placed backward.There are several factors that may contribute to your chain, one of the most important parts of the chainsaw, not as it should: What causes your chain to cut improperly? These should be carefully maintained to ensure efficiency and durability of your unit. However, just like any device it is made of different parts and has its own accessories. A chainsaw is a technological marvel that allows one to cut down huge chunks of timber with ease and in less time. Long gone are the days of using axes to cut down trees and massive chunks of timber.