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Pro circuit Low Boy.. YZF250! HELP!

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I just bought pro circuit GB with low boy header. I havent mounted it yet, but im guessing it will run like shit on stock jetting? Right/Wrong? I am a little above sea level.

I'm told : 45 pilot standard main, air screw and 2 and a half turns out

Does this sound right?

Thanks in advance :thumbsup::cry:

If not what do you veteran jetters reccomend :ride:

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how does the bike run now?

your stock syste already has a open muffler.changing to a aftermarket open pipe isnt going to ruin the jetting if it runs well now.

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