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99 400ex jetting

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Old Jul 1, 2005 | 06:47 PM
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Default 99 400ex jetting

hi im new to the group and also to doing work on my bike i was wondering if anyone had any idea on the what needs to be done to the carb(main jets,needle,etc..)...i just bought a dg stage 2 exhaust...got a k&n filter on it...would like to put the aluminum filter box with no top on it as well.....any ideas on the carb settings i might need for this mods...im in coos bay oregon pretty much sea level...thanks
 
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Old Jul 1, 2005 | 06:49 PM
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Default 99 400ex jetting

What is the stock main/pilot jet sizing?
 
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Old Jul 1, 2005 | 06:53 PM
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Default 99 400ex jetting

main jet is 148 slow jet is 38 and needle position is 3rd from the top
 
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Old Jul 1, 2005 | 08:36 PM
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Default 99 400ex jetting

And you already have the K&N installed?
 
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Old Jul 1, 2005 | 10:27 PM
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Default 99 400ex jetting

yup already in
 
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Old Jul 3, 2005 | 02:28 AM
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Default 99 400ex jetting

Coos bay w/ exhaust and open airbox, something around 40 pilot, raise the needle one, and a 165 main. I know the 40 pilot os good, but buy a 160 thru one 170 main. It will use one of those if the lid is gone.

Goin' to Horsfall in 6 days. Has it been 6 days yet??????????????????????????????????????????????? ???????????????????????????????
 
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