Leaky carb 03 WR450

3 replies to this topic
  • toten

Posted July 27, 2015 - 05:45 AM


I realized this morning that my carb seems to be losing a little fuel when parked, I think into the engine. When I turn on the petcock I see fuel flow, which shouldn't happen. 


I'm guessing it's the needle, but I could be wrong. Any suggestions on where to pick one up, or what else to replace while I'm in there?? The OEM needle is fairly expensive ($16... a lot for what it is) and in my experience OEM parts take forever to ship. 

  • Krannie McKranface

Posted July 27, 2015 - 06:36 AM


visually check the needle and seat for wear

you need to polish the cavity the needle valve sits in to remove any corrosion

you might want to buy a petcock rebuild kit too, as they seem to wear out at the same time

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  • toten

Posted July 27, 2015 - 07:49 AM


What would you suggest using to polish it?

  • Krannie McKranface

Posted July 27, 2015 - 08:33 AM


Brasso brass polish or similar

Polish the needle body too


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