I have an Echo SRM-210 that is about one year old, and does not have very much use. It has trouble starting after being hot. After it has been used to trim, it is shut off, then when i go to start it again at no choke and idle it will fire 3-4 times then quit. I normally have to give it full throtle. This has never been the case. I have always started all my equiptment at idle, and never had a problem.