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Jared Coderre
11-06-2006, 06:22 PM
I am in the process of rebuilding my buddy's 02 400ex.

We're putting in a 11:1 piston it will be bored .20 over, Hot cams stage 1, White brothers E2 slip on, and K&N filter.

The stock jet is a 148 as most of you already know. What is the correct jet for these mods?

Secondly, I have a stock 02 400 ex ironically it has a VIN # 10 digits away from his. I thought it would be good to jet it now since I will be ordering his. Can anyone recommend a jet for a stock 400ex that probably has a slip on in its future?

Thanks in advance,
JC

jordan_m6
11-06-2006, 07:19 PM
1. start with 165

2. 150-155

Jared Coderre
11-08-2006, 07:04 PM
I forgot to say thanks.