James Dean please help!

3 replies to this topic

Posted March 19, 2002 - 06:04 PM


James I am new to the posting thing. I have read several posts on BK mod and jetting. My jetting is the following in my signature, I have no clue what the stock MAJ, PAJ,and Needle Jet numbers are as they are not listed in my manual. I also have the EJP needle. Should I use it or the stock needle. The bike runs well the way it is but I am not sure if I need to change the MAJ,PAJ,and Needle Jet? How much will all these settings change with the BK mode? I live and ride in the Calif. desert 2000 to 4000 feet. Any help would be appreciated.

  • James_Dean

Posted March 19, 2002 - 08:04 PM



You have the YZ426 needle, try it. It will change the power delivery and deserves the time spent to see it work.

Leave everything as-is except the needle and main jet. EJP#4 (middle clip) and #165 main.

The increases will be at mid-throttle (1/3-2/3) and you will feel the surge rolling it on.


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Posted March 20, 2002 - 12:40 PM


Thanks JD. I will try the needle and smaller main. Will everything stay the same with the BK mod?

  • James_Dean

Posted March 20, 2002 - 06:27 PM


Use the same setting with or without the BK Mod in this case. EJP is a needle that will be a good starting point either way in clip #4.


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