Replace Woodruff Key?

4 replies to this topic
  • Bridge250R

Posted August 17, 2007 - 05:51 AM


I just picked up a 2000 YZ426 and have read the threads about the Woodruff key issue. My question is: Do I need to replace it if it isn't making noise? I don't see the benefit. I think it might make more sense to remove the retaining nut, apply some red loctite and torgue it back down. That should keep it from coming loose.


  • grayracer513

Posted August 17, 2007 - 06:13 AM


There's no need to replace it if it's not loose. The nut has a foldover lock washer on it as it is. If you're concerned about it, you might open it up and check the torque, but the Loc-Tite isn't strictly necessary, either. It would help, of course, but it's not called for.

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  • cowboyona426

Posted August 18, 2007 - 08:50 AM


I had my 00 for six years and never replaced the key, if it's not making noise just leave it be.

  • mike_dean

Posted August 20, 2007 - 04:08 PM


My '00 426 has original key with 500+ hrs, it seems some have the problem and some don't, if its not making noise leave it alone, I have had a key in my tool box for 7 yrs. Mike

  • Bridge250R

Posted August 20, 2007 - 07:37 PM


Thanks, I will just leave well enough alone. I bought the key and a flywheel puller just in case I ever need them. I am pretty anal about taking care of my stuff and trying to fix things before they become a problem. By the way, I rode the bike for the first time yesturday and I was floored by the power. I have always had XR's and this is my first motocross style bike. I wish I would have bought one years ago.

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