Nah, you paid way too much, it will fail for sure!(I'll take it)
The problem is generally the loss of residual magnetism in the rotor, which is needed to self excite the generator. (This is due to the quality of the rotor) A lot of times this can be overcome by starting the generator and letting it run for a minute or two, with nothing plugged in to it. If the rotor has the tiniest bit of magnetism left, it will slowly build up voltage in the excitation module and self excite. If you start it and plug something in straight away, then it basically shorts out the windings and loads it up reducing any residual magnetism/excitation to zero.
So when you start it next time after sitting for an extended period, make sure everything is switched off and unplugged, start it and let it sit for a few minutes running at full speed, then try a small load and see if you have a win.