low power

A good rough estimate of power loss with altitude is to calculate 3 percent per 1000 feet of elevation gain provided you have a modern engine that adjusts the fuel air mix as required. With engines using a simple carburetor the problem is even worse due to the air fuel mixture being wrong when you change altitude. Going up your mixture gets rich, fouls plugs, might even blow black smoke.

blknomad wrote:
When traveling at high altitude my moho looses power as does Rav4 toad moho is 2014 f53. Does any one else have this problem and a solution??

the worst part is they don't have very good power to begin with so altitude really shows up

crasster wrote:
Thinner air + less oxygen = less power.

actually thinner air has less ox= less power

As others have said, this is how physics work for all normally aspirated engines. (Turbocharged or supercharged engines do also lose power with altitude, at least eventually, but it's a far slower effect.) Your generator's engine also behaves the same way, which generally means the generator can't put out full rated power at high altitudes.

The solution, short of installing a different engine (or a turbocharger or supercharger), is basically just to put up with it. This may mean downshifting (or letting the transmission downshift if it's an automatic), running at higher throttle, and/or going at a slower speed.

blknomad wrote:
.... and a solution??

The solution is a turbo to put more air into the engine. Most commonly done by getting a Diesel powered motor home. I upgraded my coach from gas to turbo powered diesel engine and now have all the powered I need/want. See link in signature for what I did.

Thinner air + less oxygen = less power.

That's how it works, at higher attitudes there is less air.

A turbocharger or supercharger will help. But, it's easier to just travel slower enjoy the scenery.