I just wanted everyone to know for about $42 you can convert the newer Shindaiwa (Echo clone) and Echo blowers from the small side filter to the much better top filters. The small side filters are notorious for getting oil on them and running like crap. And even when you replace the small filters the new blowers tend to run like crap for at least a few days. I've had to have the coils replaced in all my blowers twice under warranty as well. If you run 89 or better gas and notice pop corn looking stuff on your plug coupled with the engine misfiring it's probably your coil going out.