[four50fo_me]

I rode my bike a few days ago in Wa and had no problems with it. Now I am at 6500 feet in Arizona and it won't idle right and seems to be running rich but I thought Fuel injection wasn't affected by altitude. Does anybody know what's up? Thanks, Bob

 

[AL Elks]

I rode my bike a few days ago in Wa and had no problems with it. Now I am at 6500 feet in Arizona and it won't idle right and seems to be running rich but I thought Fuel injection wasn't affected by altitude. Does anybody know what's up? Thanks, Bob
[/b]

It will only adjust so far then it needs to be tuned. Sounds like you exceeded the limits for the EFI to tune itself.

 

[Kracker]

I went from 700 feet in phx. to 6000-8000 in Flagstaff. I did notice it would not idle as good. And there is a definate loss of power. Overall, it still ran good.

 

[YFZ450 Blaster Racer]

Well it would probably be ok if all mods done to efi were taken off (baffle, airlid).

 

[four50fo_me]

Is there any way to lean it out without a control module?