Fixed my burp, if that's what we're calling that awful hunting behavior that makes the generator sound like someone is shutting the ignition off for a few moments every couple of seconds.
The genny had worked just fine until I took it to a camping spot at 3000 ft last weekend, and right away it started this rump rump business.
Kept it up when I got back home too at my 140' above sea level, so the fact it started screwing up at a bit of elevation was just a coincidence.
Seemed to be running lean. The main jet was clear but there was a little bit of golden crud on the bottom of the float bowl. Aha! Turns out the pilot jet up top the carb was plugged. The orfice is tiny! It only admitted the smallest drill I have to clean it up, a #80 or .00135". Any bigger and the drill dug into brass but while the 80 was stiff and resisting at first, it ran freely by bare finger twist after a bit, with no brass evident on the flutes so that's got to be the size the pilot jet was intended to be.
After putting it back together it purrs like the proverbial kitten again.
