BK mod at 5000'

3 replies to this topic
  • firejake69

Posted November 14, 2001 - 08:56 PM


If anyone has done the BK mod and rides at 5-7000' please let me know what settings your using. I'm thinking about doing the mod but am somewhat reluctant. Just want it to go as smooth as possible.

  • Psycho426

Posted November 14, 2001 - 09:34 PM



I'm at 5000' Ernie recommended 165 main,45 pilot it worked for him and it worked for me :)
My pilot screw is currently a 2 turns out, it seems to be fine, I'll see how she does on the track this weekend.

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  • yzernie

Posted November 15, 2001 - 02:57 AM


Originally posted by Psycho426:
I'm at 5000' Ernie recommended 165 main,45 pilot it worked for him and it worked for me

I also recommended one leaner on the needle. I also run race gas so I can jet a bit leaner than if running pump gas. That should be a good baseline to start. Don't forget, the higher you go, the richer it will run.


  • mikeolichney

Posted November 15, 2001 - 11:12 AM


I have the BK mod on my 01 set at 0.3 sec. Otherwise stock running pump fuel. I am running a 165 main if the temps are around 40 degrees, 162 if around 60 degrees. Needle clip #2. If it gets really cold I may go to #3. #4 runs like crap, lots of cracking/gurgling sounds. Pilot #42, 1 to 2 turns out depending on temp.

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