First use since last year. can't get to start. ran out of fuel before storing, oil is full.. help ! arm getting sore pulling cord..

First you should get a new spark plug which might solve the problem. If it still won't start what I normally do with chainsaws, lawnmowers etc is to remove the spark plug and pour about 5ml (one teaspoonful) of fuel into the opening. Dip the spark end of the plug into fuel so the spark gap is wet and replace the plug in the saw. Try starting it now. The fuel you poured in should ignite and may be enough to start the saw. You may have to repeat the process 2 to 3 times. Don't be tempted to use more than 5 ml of fuel or you'll flood the saw.

I hope this solves your problem.

Try a spray of starting fluid into the carb

Try a new air filter. Sitting over the winter months allows the filter to swell and close itself up. Although it looks good, it will starve the engine for air.