Upgrade from keihin flat cr?


2 replies to this topic
  • W1ngNut30

Posted April 16, 2014 - 06:51 PM

#1

Is there an upgrade from the keihin flat cr for a 2000 wr400f?

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  • grayracer513

Posted April 17, 2014 - 06:52 AM

#2

Get hold of a complete carb from an '05 or later YZ450.  It's an FCR-MX.  More modern internal circuitry, more reliable, less fussy.  you need to get the hot start assembly with it or the pieces will nickel/dime you up a wall.  Use 450 throttle cable in your throttle grip. "Bolts on".



  • W1ngNut30

Posted April 17, 2014 - 09:18 AM

#3

Awesome thanks!





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