Altitude adjustment on Onan 5500 generator - question

Interesting....so does the 10,000 not exist anymore? I really objected to my carb being replaced with a 'lesser' model.

Just replaced the carb on mine. Old one was 10,000' the new carb is 6,500'.

Who knows what they are doing. I never noticed the diff till I got to camp & went to adjust it. WTH? I did notice the last time out @ 7,400' it was running a little fat (rich)

I have a 2007 Winnebago Outlook that had an adjustment max up for 10,000. I use it all the time because we ALWAYS camp out of state at high altitude. Last week a local rv service center in Murrieta (Southern Calif) needed to replace my carburetor because it went bad. They replaced it with a carb that only goes up to 6,000 feet. I asked them about it and what they stated on my paperwork was California has a law of only 6,000 feet. Does anyone know if this is true, or did the dealer shortchange me with a "lesser" carb?

Thousands of ancient NHE Onan generators operated just fine to 8,500 feet and even up to 11,000 feet with NO altitude adjustment screw. If I were you I would certainly adjust to 5,000 feet even when at 10,000 feet altitude and TRY IT OUT before I started to worry about the sticker. Only electronic fuel injection has made any significant difference in how a genset behaves at altitude. 11,000 feet? Yes. Saddlebag lake RV campground which is actually at 11,200 feet altitude off Highway 120 atop Tioga Pass California. I serviced RV's and the facility generators up there for years. Adjusting choke settings and cautioning owners about a severely limited maximum rated output turned out to be the more significant points. What DID make a huge difference was replacing a WITTE diesel genset with a turbocharged Perkins.