marko,
Even with the trouble I had with this unit after taling to a guy that sells them in Austin, Tx I'm ready to give the Boliy another try. I remember when Kipor first hit the scene they had similar problems and eventually seem to have ironed them out and I now find them several local stores here that offer local service.
What happened was a few weeks ago I saw a small generator at a campout and like it so much I asked where to get one. It is a 2009 model Disafter DS1000P3 from bottomlinetrading.com and cost $300 including shipping. It's a 1000W continuous and 1250W start completely enclosed and it has done everything I could ever hope and more in a unit that size. Let me first say I don't have anything to do with this company & don't even know anyone there but if someone is interested in a small, quiet, generator with a bit more umph than Kipor & Yamaha I have to say it's impressed me a bunch.
http://www.bottomlinetrading.com/DS1000P3.html
Anyway, they also sell, service, and stock parts for the Boliy and crank and test under load every generator before it leaves their location. He says they are having great results with the 2009 blue Boliy and I've decided to give it another shot. Like you I really hope to find the lighter, less expensive unit powerfull enough to handle what I need.
Thanks
scrollmaster