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400EX difference?

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Old Jan 11, 2004 | 11:47 PM
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Default 400EX difference?

Is there any difference between the 99 and new 400exs?
 
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Old Jan 12, 2004 | 12:47 AM
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Default 400EX difference?

Yep, the new 400exs, 04 and up, have 38 mm carbs, thats about it performance wise.
 
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Old Jan 12, 2004 | 01:41 AM
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Default 400EX difference?

what size carb does the 03 have?
 
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Old Jan 12, 2004 | 08:27 AM
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Default 400EX difference?

The 03s and under, im pretty sure have a 36.5 mm carb, not a big difference, just a little better than the rest.
 
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Old Jan 12, 2004 | 08:49 AM
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Default 400EX difference?

The stock carb on the early model EX's is 35.5mm. I heard in the EXriders forum that the '04 carb size was a missprint - But I dont know for sure.
 
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Old Jan 12, 2004 | 09:02 AM
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Default 400EX difference?

even our local Honda shop said it was a misprint.[img]i/expressions/face-icon-small-shocked.gif[/img]
 
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Old Jan 12, 2004 | 11:22 AM
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Default 400EX difference?

besides carb, any other differences??
 
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Old Jan 12, 2004 | 11:28 AM
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Default 400EX difference?

they also added braces to the air box to help suport it. look in my pics to see them.they are the silver parts with the L and R on them. but no nothing major has been changed.
 
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Old Jan 12, 2004 | 11:36 AM
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Default 400EX difference?

Originally posted by: sickmojave
even our local Honda shop said it was a misprint.[img]i/expressions/face-icon-small-shocked.gif[/img]
That figures because I cant imagine a 38mm carb in a non-ported 400ex motor. I had Keihin 39mm in my stock 400ex and it was too much - we never could jet it down to a level that ran the motor well.
 
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