Help with the throttle mod...

10 replies to this topic
  • 3boyz3dogz

Posted July 19, 2004 - 07:44 PM


I want to do the throttle stop mod on my '04 WR 450. I want to replace it with the YZ throttle stop. I talked to the mechanic at the Yamaha dealership, he said there is no shorter YZ throttle stop to replace the WR, that I have to cut the WR one. Reading the forum here, a lot of guys have bought them. Where can I get the part? Do I need to go to a different dealer? Thanks.........

  • V968231

Posted July 20, 2004 - 12:45 AM


Take a look @

The part number is listed there

  • RNH

Posted July 20, 2004 - 03:48 AM


Try a different dealer or look the part number up yourself at the Yamaha website.

  • StreetbikePimp

Posted July 20, 2004 - 04:45 AM


Tell your dealer to do some homework and read up on That way he doesn't look like a idiot the next time someone asks him a question.

  • 3boyz3dogz

Posted July 20, 2004 - 09:58 AM


Thanks for all your help. I got the part number and now I can go buy it. I thought that would be easier than hacking the longer one...

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  • luke_n

Posted July 20, 2004 - 06:41 PM


Streetbikepimp im a little scared to click on your link to LOL :thumbsup:

  • StreetbikePimp

Posted July 21, 2004 - 05:05 AM



I'm an engineer. I suck at spelling.

  • tcmII

Posted July 23, 2004 - 04:44 PM


Have your dealer look in the Yamaha Bulletin Book. There is a whole section on setting up the WR for "closed course" use. It should have the stop number and, I think, there is info on the grey wire mod.

If you still can't get the pn let me know. I bought one from the dealer near me and I may be able to find the receipt. By the way, the stop does not work on the 1998 WR.

  • trunkmonkey55

Posted July 23, 2004 - 08:13 PM


I just took mine to the grinder. kinda easy just messure twice cut once or is that with wood. what ever my stop works so I figure I did kinda good. :thumbsup: :devil:

  • tcmII

Posted July 24, 2004 - 10:34 AM


I was just in the garage and found a Yamaha part wrapper. I am pretty sure that it was for the throttle stop screw. the pn is 5JG-14591-00. Make sure that you have the dealer check before you order.

  • Rick_Kienle

Posted July 26, 2004 - 08:15 AM


Correct. From 2004 YZ450F parts fiche:

5JG-14591-00-00 .SCREW


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