Hi,just new here,I have a problem with my Yamaha ef 3000ise generator. It will run a power saw ,drill and the idle comes up like it should but it will not run my coffee pot with a timer or run any kind of fan ,box fan or stationary fan. Has something happened to the sine wave to knock it out of sinc, and if so what caused it and how do i repair it.There does not to seem any information about, not even from Nabble.com Any help would sure be appreciated as i need the Jen. this wknd.Tom