High altitude.....

I'll be riding the Rubicon @ Tahoe in two weeks. Altitude around 7500 feet. I have two bikes that I don't really want to do a damn thing to. I'm lazy :thumbsup: . How bad will they run at that altitude? Bikes are 2005 yz450 bone stock motor and pipe w/ spark arrestor and 2005 crf250x totally bone stock (little tiny snorkel exhaust and all). Can I get away with stock jetting for just a day ride, or how about a needle adjustment? Thanks for the help, Jason


it will run ok for the day.

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