I'm using a Honda weed eater that has been one of the best pieces of equipment I own. It has never failed to crank and run when I called upon it. Recently it has started something strange.....It will start and run fine for as long as you want to run it. If, however, you shut it down after 10 minutes or more use it will not start at all no matter how many times you pull the string. Its almost like a vapor lock or some electronic part is getting hot not working any longer. Any suggestions will be appreciated.