Newer carb on a 99 WR400?


5 replies to this topic
  • ffd480

Posted June 07, 2007 - 09:01 PM

#1

:thumbsup: Can you run a carb off a newer Wr450 on a 99Wr400? I am having some serious carb troubles, and am in need of replacing the one I have. If you have any suggestions please let me know?

  • SXP

Posted June 07, 2007 - 09:16 PM

#2

:thumbsup: Can you run a carb off a newer Wr450 on a 99Wr400? I am having some serious carb troubles, and am in need of replacing the one I have. If you have any suggestions please let me know?



Yes, you can. I'm running an 04 WR450 carb on my 99. You will need to buy the 04/05 carb cables, and the hot start cable (if you plan to use the hot start as it's on the carb, otherwise just the hotstart plunger in the closed position with the POS plastic cap). The carb is not as long from intake bell to induction bell as the 99 carb, so the air boot has to be stretched to meet the intake bell. I find it easiest to first clamp the air boot to the intake bell of the carb, then shove the carb into the induction boot on the head. The performance difference is pretty amazing - the 99 carb is a POS and a nightmare to tune.

  • Rich_in_Orlando

Posted June 08, 2007 - 05:06 AM

#3

What SXP said.

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  • SXP

Posted June 08, 2007 - 05:28 AM

#4

What SXP said.


BTW, Rich was the pioneer in this area. I just followed his lead.

  • ncampion

Posted June 08, 2007 - 05:53 AM

#5

Consider an Edlebrock carb. Much cheaper than a carb from Yamaha and super easy to tune. Have had mine for over two years and it is trouble free and easy to start, hot or cold.

  • SXP

Posted June 08, 2007 - 06:11 AM

#6

Consider an Edlebrock carb. Much cheaper than a carb from Yamaha and super easy to tune. Have had mine for over two years and it is trouble free and easy to start, hot or cold.


Kinda off topic, but I noticed from your sig that you run a Rekluse in your 98. How do you like it? I just put mine from my 99 WR400 up for sale as my riding style just didn't suit the clutch (see classifieds).




 
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