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Old 03-06-2013, 02:23 AM   #1
mtntrails OP
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2003 DR-Z400E - High Altitude Jetting Questions

A buddy of mine in the Midwest is planning an extended trip out west on his 2003 DR-Z400E. With fuel mixture and idle adjustments, how high in altitude will he be able to go before re-jetting is required? Will it require any more than a main jet changeover?
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Old 03-06-2013, 06:33 AM   #2
YAHBO
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162 main

I'm no carb expert but I had the same concerns when I built up my E for the TAT last year. I ran a 162 main jet here at sea level and the bike performed flawlessly here on my home turf and the whole TAT run, including the 13K elevations out in CO.

All other jets and exhaust are stock an the top of the air box is opened up.

Hope that helps you, brother.

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Old 03-06-2013, 09:19 AM   #3
mtntrails OP
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Thanks YAHBO - that's just what my buddy was hoping to hear. Did you end up adjusting the mixture or idle at any point?
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Old 03-06-2013, 07:40 PM   #4
Foot dragger
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My 01 E was lean enough stock to run most any elevation,took 5 minutes to warm up and run right even at sea level. I wouldnt mess with it either.
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Old 03-07-2013, 05:16 AM   #5
YAHBO
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No muss no fuss.

Quote:
Originally Posted by mtntrails View Post
Thanks YAHBO - that's just what my buddy was hoping to hear. Did you end up adjusting the mixture or idle at any point?

Nope. Never touched it. Haven't messed with it to this day.
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