Pull the plug and see if there is gas on it. If it is dry (after trying to start) you are not getting gas. Check carb, feul lines etc. If there is gas on it, set it on the cylinder and pull the saw over. But, be sure that there isn't any gas lying around, as it may ignite. If it won't spark check your plug, wire, coil, etc. If neither of these two, check compression. 3 things needed for any motr to run.