A neighbour brought his Stanley chainsaw over yesterday because he couldn't get it started. He is not sure how long he has had it but it is less than 12 months. It has only been used once by his brother in law to chop down a small tree. It has spark and compression as you would expect from a new machine even though it is Chinese rubbish, but you would expect it to work more than once. It has fuel and the primer seems to be working and even with a spray of starter fluid on the air filter I could not even get one little flutter from it, not the slightest attempt to fire. I'm guessing it is a carby problem but I just couldn't be bothered pulling the carby off with little chance of finding the problem. Any thoughts?