Carb leaking in YZ450

3 replies to this topic
  • jbyo

Posted May 23, 2005 - 05:04 AM


Have an 03 YZ450, leaking from hose as soon as I turn the gas on. I cleaned some funk out the bottom of the bowl, thought that was the issue closed it back up, but still the same issue. What's the best way to get the carb out of the bike?, not much room to work with the cables still attached. Would like to give it a more complete cleaning with the compressor.

  • offrodeo

Posted May 23, 2005 - 10:21 AM


i think i might know your problem, follow the hose that leaks up to the bottom of the carb. If it is the one i am thinking about, there might be an allen head screw at the top of the hose, tighten that and it might stop your leak. When i was putting in my zip ty screw i messed with that and when i loosened it gas poored out the hose. good luck


Visit the ThumperTalk Store for the lowest prices on motorcycle / ATV parts and accessories - Guaranteed
  • curtains23

Posted May 23, 2005 - 12:20 PM


Check the float in the carb, that could wel be your problem, (its stuck down) try tapping the float chamber with a small hammer or screw driver if that fixes it replace the needle valve and seat..good luck

  • ovrrdrive

Posted May 23, 2005 - 06:10 PM


The fact that there was "funk" in the bowl makes me think the bowl is gummed up and just needs a good cleaning.

There's no "easy" way to remove the carb, but it is pretty easy to get it off. You just have to disconnect everything and it will pop right out.

Related Content


Is the 2016 GYTR Yamaha YZ450F too fast? by Fryboy

Dirt Bike   Special Interest Forums   Pro Racing
  • * - - - -
  • Hot  241 replies

YZ450F 03 Sparks driving me crazy by SirAttard

Dirt Bike   Make / Model Specific   Yamaha   YZ 400/426/450
  • 5 replies

Snake pit oct 30th by The Anvil

Dirt Bike   Dirt Bike Regional Discussion   California
  • Hot  131 replies
WR Camshaft Swap Info - last post by jamesm113

WR Camshaft Swap Info

  • 0 replies

Is it worth it? (Cam and High compression piston) by macgi77

Dirt Bike   Make / Model Specific   Honda   CRF 150/230 F/L
  • Hot  36 replies

Join Our Community!

Even if you don't want to post, registered members get access to tools that make finding & following the good stuff easier.

If you enjoyed reading about "" here in the ThumperTalk archive, you'll LOVE our community. Come join ThumperTalk today!

The views and opinions expressed on this page are strictly those of the author, and have not been reviewed or approved by ThumperTalk.