400ex jetting question

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05-16-2004, 08:53 PM

blasterrider04

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400ex jetting question

ive just purchased a white brothers e series silencer k and n air filter and a dyno jet kit. wHAT SHOULD I MAKE MY MAIN JET SIZE AND IS IT HARD TO DO

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05-16-2004, 09:39 PM

cals400ex

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400ex jetting question

i would take the jet kit back and go buy an individual keihin 152 and 155 main jet and you should be set.

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05-16-2004, 10:58 PM

fastinahat

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400ex jetting question

You need the jetkit for the different needle taper. you cant buy one of those by it self. i have a similar setup as you do and i run a 160 size main jet in mine.

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05-16-2004, 11:53 PM

havinnoj

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400ex jetting question

mine ran fine just going to a 155.

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