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JD Jetting Question

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I need a little help:

2002 DRZ 400 E (FCR 39)

Snorkle gone

Big Gun EVO X full system is just about to go on

Twin Air

I'm in Colorado and ride between 4000 and 9000 ft, predominantly.

1. I'm getting ready to put in a JD kit and was wondering what the best set up would be for the needle position and mj?

2. Also, should i change out the pilot jet and the maj, as well? Looks like the kit only came with mj's.

3. Last thing. Does it make a big difference to pull off the coast enrichener and does that change the jetting if i pull it off?

This is my first post and any help would be appreciated!

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How come his kit came with a 148, and mine didn't? Not that I need or want one, but was just more or less curious. Unless you're telling him to buy one.

For that altitude, my kit says to use the red needle on the 4th clip position, with a 170 or 172 main? Is it different for each bike? (I just left myself open to alot of criticism)

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I had to buy a 148. The lowest in the kit was a 155. For my altitude the kit says red needle at the 5th position, but, my guess is that is intended by JD to keep things rich so you trash your valves.

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