High Altitude modification for Honda 2000s

Question

Has anyone felt the need, had the urge and/or modified their Honda 2000 generators (or any make/model) for high altitude?
At home (7200'), our twin set up with parallel cord seems to power the Coleman Mach 13.5 unit.
Are there forum members with a different experience at this elevation or higher at (9-10K') and needed to modify? thanks.

narcodog · Answer

I put the high alt jet in mine and after using it at 9K feet. It ran fine but rich at that altitude.

moderator · Answer

moved from ATC

mexicowanderer · Answer

I had the head shaved .060 on my 1500 and it really helped. Flathead engine though. Had the head shaved on a couple of Witte diesels .090" and it really helped at 11,200 feet altitude.

soundguy · Answer

Stormpeakco wrote:Has anyone felt the need, had the urge and/or modified their Honda 2000 generators (or any make/model) for high altitude?Changing the main jet is hardly a "modification" ... details in this thread.

thunder_mountai · Answer

I've used my two Honda 2000s at over 10,000 for 8 years without modification. When at altitude, we have to use both generators to run the microwave or air, and we have to be careful about which combinations we use.

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High Altitude modification for Honda 2000s

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