Most generator problems like this that are discussed here are solved by replacing the fuel filter and/or Fuel Pump. If you have any mechanical aptitude at all, you can do both yourself fairly easy. In fact, I'd perform 500hr. complete service to the unit and create a PM baseline so from this point forward you know what's been done and eliminate future problems. You can do all this yourself too and parts bought @ Amazon.
Here's a link that may be helpful in doing the filter/pump replacement.
http://www.irv2.com/forums/f84/gener...ml#post3712107
BTW...
About putting your MH information into your signature
I know you mentioned your MH in your post, but take a couple of minutes to fill out your signature with other information about your MH. This will really help for all future posts.
You do this by:
1) Going to the top of this page and click the top left tab named “User CP”
2) Scroll down and click “Settings & Options”
3) Click “Edit Signature”
4) In that text box type all the information about your MH. Year, model, length, mileage, any aftermarket extras installed and so on.