On Line Source for YZ Throttle Stop Screw

7 replies to this topic
  • Kmorris

Posted March 10, 2008 - 07:32 PM


Greeting - does anyone know of an on line source for Yamaha or Kehnin Carb parts? I'm looking for a 2005 or (?) throttle stop screw for my 05 WR 450 F.


  • Kmorris

Posted March 10, 2008 - 07:37 PM


Hum - I found the part number for the YZ screw in one of Clark4131 (thanks!) posts with some source links.

I'd be open to your thoughts about OEM on line parts though.


  • CORider63

Posted March 10, 2008 - 09:45 PM


Cheapest place that I've found:


Good fiche search site. Good service, just a little higher priced:


  • C-P

Posted March 11, 2008 - 12:20 AM


hmm...you're on it. Go to Thumpertalk OEM. If they don't have the parts #"s listed, www.yamaha-motor.com for parts #'s, then plug them into the TT parts search. Bammo, you're done. Bought a bunch of YZ carb parts for my W that way.

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  • Kmorris

Posted March 11, 2008 - 08:43 AM


Thanks guys. I don't understand the membership fee part of TT OEM parts though.

  • JSanfilippo

Posted March 11, 2008 - 10:53 AM


Or you could just cut the stop to 23.5mm total length :thumbsup:

  • Kmorris

Posted March 11, 2008 - 12:39 PM


Howdy - I did cut mine to 23.5 mm however I must have actually cut off a bit more say 22.9 or so. What happens then is that the screw is too short and the carb will stumble at WOT. Or so mine does unless I place a little small rubber cap over the screw. So since I only go one chance at it I'm going to get another screw. I guess I should have measured twice...cut..


  • byggd

Posted March 11, 2008 - 01:34 PM


the screw is too short and the carb will stumble at WOT

The screw being too short has also been known to cause the throttle to stick at WOT :thumbsup:

I didn't understand the membership fee for the OE TT store either but they saved my almost $40 on my 03 YZ cam alone so........


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