I'm pretty sure most if not all Honda generators have a 'floating' ground. This is by design. Needless to say, this causes problems such as what you are having and also causes problems if you wish to connect a UPS. If you want to have some fun, hook up a digital meter and measure the voltage from neutral to ground, power to neutral, etc.

[This message has been edited by Sandro (edited 05-22-2003).]