Another BK Mod

4 replies to this topic
  • Thumpin_426

Posted November 13, 2001 - 03:41 PM


I just finished another BK Mod to a friends '01 YZ 426. He couldn't believe the difference. He siad this Mod was the BEST modification he has ever done on any of his bikes!! Again, THANKS BK!!

  • motoman393

Posted November 13, 2001 - 04:08 PM


Thats what I said when I did mine! But a few others disagree because they didnt change the jetting!

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  • yzernie

Posted November 13, 2001 - 07:13 PM


I was finally able to get my bike out to the track Sunday to test out the knee and the BK mod. I had ridden Ty Davis's trails and it seemed ok. I got onto the track and I could not believe the performance gain. It took me a while to get the jetting down because I live at 4000'. Once I got it dialed.....OH MAN!!!! I can already tell that rear tire life will suffer as a result of the mod!!!LOL


  • 426_Monster

Posted November 14, 2001 - 02:52 AM


Please explain BK mod

  • Psycho426

Posted November 14, 2001 - 03:23 AM


Monster - it's a carb mod to shorten the duration of the accelerator pump spray, go to the link below (Motoman393's website) for pics and how to do the mod, I did mine on Monday evening

BK Mod

[ November 15, 2001: Message edited by: Psycho426 ]

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