I ran a motor hot on an Echo trimmer. When I was younger though I remember people told me about boring out the engines. Is it possible for a 2 cycle? Would this solve the problem? It runs and starts but when I hit the gas, it bogs out unless I leave the choke on about 9/10ths of the way. It works fine I just wish I knew that the oil couldn't sit. The blower cost $265, a new motor is 245. BS. Are there such things as a four cycle trimmer?